(Legacy): added formats, mostly PC-98.

Legacy/Desire/ImageDES.cs

@@ -0,0 +1,74 @@
+//! \file       ImageDES.cs
+//! \date       2023 Oct 15
+//! \brief      DES98 engine image format (PC-98).
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+// [940720][Desire] H+
+
+namespace GameRes.Formats.Desire
+{
+    [Export(typeof(ImageFormat))]
+    public class DesFormat : ImageFormat
+    {
+        public override string         Tag => "DES98";
+        public override string Description => "Des98 engine image format";
+        public override uint     Signature => 0;
+
+        public DesFormat ()
+        {
+            Extensions = new[] { "" };
+        }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            ushort width  = Binary.BigEndian (file.ReadUInt16());
+            ushort height = Binary.BigEndian (file.ReadUInt16());
+            if (0 == width || 0 == height || (width & 7) != 0 || width > 640 || height > 400)
+                return null;
+            return new ImageMetaData {
+                Width = width,
+                Height = height,
+                BPP = 4,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 4;
+            var palette = ReadPalette (file.AsStream, 16, PaletteFormat.Rgb);
+            var reader = new System98.GraBaseReader (file, info);
+            reader.UnpackBits();
+            return ImageData.Create (info, PixelFormats.Indexed4, palette, reader.Pixels, reader.Stride);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("DesFormat.Write not implemented");
+        }
+    }
+}