(Legacy): PAC archives and KGD images.

2026-07-08 01:30:18 +08:00 · 2018-08-23 23:56:39 +04:00
parent 6e5c60ee2c
commit 11e59fc221
5 changed files with 511 additions and 0 deletions
--- a/Legacy/KeroQ/ImageKGD1.cs
+++ b/Legacy/KeroQ/ImageKGD1.cs
@@ -0,0 +1,127 @@
+//! \file       ImageKGD1.cs
+//! \date       2018 Aug 22
+//! \brief      KeroQ image format.
+//
+// Copyright (C) 2018 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;
+
+namespace GameRes.Formats.KeroQ
+{
+    internal class Kgd1MetaData : ImageMetaData
+    {
+        public int  AlphaLength;
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class Kgd1Format : ImageFormat
+    {
+        public override string         Tag { get { return "KGD1"; } }
+        public override string Description { get { return "KeroQ image format"; } }
+        public override uint     Signature { get { return 0x3144474B; } } // 'KGD1'
+
+        public Kgd1Format ()
+        {
+            Extensions = new string[] { "kgd" };
+        }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x18);
+            int bpp = header.ToInt16 (6);
+            if (bpp != 8 && bpp != 24)
+                return null;
+            return new Kgd1MetaData {
+                Width  = header.ToUInt32 (8),
+                Height = header.ToUInt32 (0xC),
+                BPP = bpp,
+                AlphaLength = header.ToInt32 (0x10),
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var meta = (Kgd1MetaData)info;
+            file.Position = 0x18;
+            byte[] alpha = null;
+            if (meta.AlphaLength != 0)
+                alpha = file.ReadBytes (meta.AlphaLength);
+
+            BitmapPalette palette = null;
+            PixelFormat format;
+            if (8 == info.BPP)
+            {
+                palette = ReadPalette (file.AsStream);
+                format = PixelFormats.Indexed8;
+            }
+            else
+                format = PixelFormats.Bgr24;
+            var pixels = new byte[(int)info.Width * (int)info.Height * (info.BPP / 8)];
+            file.Read (pixels, 0, pixels.Length);
+            if (alpha != null)
+            {
+                pixels = ApplyAlphaChannel (meta, pixels, palette, alpha);
+                format = PixelFormats.Bgra32;
+            }
+            return ImageData.Create (info, format, palette, pixels);
+        }
+
+        byte[] ApplyAlphaChannel (ImageMetaData info, byte[] image, BitmapPalette palette, byte[] alpha)
+        {
+            var output = new byte[4 * (int)info.Width * (int)info.Height];
+            if (24 == info.BPP)
+            {
+                int dst = 0;
+                int asrc = 0;
+                for (int src = 0; src < image.Length; src += 3)
+                {
+                    output[dst++] = image[src];
+                    output[dst++] = image[src+1];
+                    output[dst++] = image[src+2];
+                    output[dst++] = (byte)~alpha[asrc++];
+                }
+            }
+            else
+            {
+                int dst = 0;
+                var colors = palette.Colors;
+                for (int src = 0; src < image.Length; ++src)
+                {
+                    byte c = image[src];
+                    output[dst++] = colors[c].B;
+                    output[dst++] = colors[c].G;
+                    output[dst++] = colors[c].R;
+                    output[dst++] = (byte)~alpha[src];
+                }
+            }
+            return output;
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("Kgd1Format.Write not implemented");
+        }
+    }
+}