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

2026-07-08 01:30:18 +08:00 · 2023-10-20 18:21:55 +04:00
parent 67811651d4
commit 1aac79f7b5
19 changed files with 2705 additions and 328 deletions
--- a/Legacy/Ucom/ImageUG.cs
+++ b/Legacy/Ucom/ImageUG.cs
@@ -0,0 +1,104 @@
+//! \file       ImageUG.cs
+//! \date       2023 Oct 16
+//! \brief      Ucom 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 System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+// [961220][Ucom] Bunkasai
+
+namespace GameRes.Formats.Ucom
+{
+    [Export(typeof(ImageFormat))]
+    public class UgFormat : ImageFormat
+    {
+        public override string         Tag => "UG";
+        public override string Description => "Ucom image format";
+        public override uint     Signature => 0;
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".UG"))
+                return null;
+            int left   = file.ReadUInt16();
+            int top    = file.ReadUInt16();
+            int right  = file.ReadUInt16();
+            int bottom = file.ReadUInt16();
+            int width = (right - left + 1) << 3;
+            int height = bottom - top + 1;
+            if (width <= 0 || height <= 0 || width > 640 || height > 512)
+                return null;
+            return new ImageMetaData
+            {
+                Width = (uint)width,
+                Height = (uint)height,
+                OffsetX = left,
+                OffsetY = top,
+                BPP = 4,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var reader = new UgReader (file, info);
+            return reader.Unpack();
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("UgFormat.Write not implemented");
+        }
+    }
+
+    internal class UgReader : System98.GraBaseReader
+    {
+        public UgReader (IBinaryStream input, ImageMetaData info) : base (input, info)
+        {
+        }
+
+        public ImageData Unpack ()
+        {
+            m_input.Position = 8;
+            var palette = ReadPalette();
+            UnpackBits();
+            return ImageData.Create (m_info, PixelFormats.Indexed4, palette, Pixels, Stride);
+        }
+
+        BitmapPalette ReadPalette ()
+        {
+            var colors = new Color[16];
+            for (int i = 0; i < 16; ++i)
+            {
+                ushort rgb = m_input.ReadUInt16();
+                int b = (rgb & 0xF) * 0x11;
+                int r = ((rgb >> 4) & 0xF) * 0x11;
+                int g = ((rgb >> 8) & 0xF) * 0x11;
+                colors[i] = Color.FromRgb ((byte)r, (byte)g, (byte)b);
+            }
+            return new BitmapPalette (colors);
+        }
+    }
+}