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/Harvest/ImageUNH.cs

@@ -0,0 +1,96 @@
+//! \file       ImageUNH.cs
+//! \date       2023 Sep 26
+//! \brief      MyHarvest image format.
+//
+// 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 System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+// [021206][MyHarvest] Idol Mahjong Final Romance 4
+
+namespace GameRes.Formats.MyHarvest
+{
+    [Export(typeof(ImageFormat))]
+    public class UnhFormat : ImageFormat
+    {
+        public override string         Tag => "UNH";
+        public override string Description => "MyHarvest image format";
+        public override uint     Signature => 0x30484E55; // 'UNH0'
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x18);
+            if (header.ToInt32 (4) != 1)
+                return null;
+            return new ImageMetaData {
+                Width  = header.ToUInt32 (0x10),
+                Height = header.ToUInt32 (0x14),
+                BPP    = 16,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 0x44;
+            var pixels = new ushort[info.iWidth * info.iHeight];
+            var frame = new ushort[0x1000];
+            int frame_pos = 0;
+            int dst = 0;
+            byte mask = 0;
+            int ctl = 0;
+            while (dst < pixels.Length)
+            {
+                mask <<= 1;
+                if (0 == mask)
+                {
+                    ctl = file.ReadByte();
+                    if (-1 == ctl)
+                        break;
+                    mask = 1;
+                }
+                ushort word = file.ReadUInt16();
+                if ((ctl & mask) == 0)
+                {
+                    pixels[dst++] = frame[frame_pos++ & 0xFFF] = word;
+                }
+                else
+                {
+                    int offset = word >> 4;
+                    int count = (word & 0xF) + 2;
+                    while (count --> 0)
+                    {
+                        ushort u = frame[offset++ & 0xFFF];
+                        pixels[dst++] = frame[frame_pos++ & 0xFFF] = u;
+                    }
+                }
+            }
+            return ImageData.Create (info, PixelFormats.Bgr565, null, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("UnhFormat.Write not implemented");
+        }
+    }
+}