implemented variations of PAC archives and PGD images.

2026-07-08 01:30:18 +08:00 · 2016-02-13 17:37:32 +04:00
parent 71e01d1ee1
commit 23e5856825
5 changed files with 328 additions and 2 deletions
--- a/ArcFormats/Softpal/ImagePGD.cs
+++ b/ArcFormats/Softpal/ImagePGD.cs
@@ -0,0 +1,124 @@
+//! \file       ImagePGD.cs
+//! \date       Sat Feb 13 13:56:06 2016
+//! \brief      Image format used by subsidiaries of Amuse Craft (former Softpal).
+//
+// Copyright (C) 2016 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 GameRes.Utility;
+
+namespace GameRes.Formats.Softpal
+{
+    [Export(typeof(ImageFormat))]
+    public class Pgd11Format : ImageFormat
+    {
+        public override string         Tag { get { return "PGD/11_C"; } }
+        public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
+        public override uint     Signature { get { return 0x1C4547; } } // 'GE\x1C'
+
+        public Pgd11Format ()
+        {
+            Extensions = new string[] { "pgd" };
+        }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            var header = new byte[0x20];
+            if (header.Length != stream.Read (header, 0, header.Length))
+                return null;
+            if (!Binary.AsciiEqual (header, 0x1C, "11_C"))
+                return null;
+            return new ImageMetaData
+            {
+                Width   = LittleEndian.ToUInt32 (header, 0x0C),
+                Height  = LittleEndian.ToUInt32 (header, 0x10),
+                OffsetX = LittleEndian.ToInt32 (header, 4),
+                OffsetY = LittleEndian.ToInt32 (header, 8),
+                BPP     = 32,
+            };
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            stream.Position = 0x20;
+            using (var reader = new ArcView.Reader (stream))
+            {
+                int unpacked_size = reader.ReadInt32();
+                reader.ReadInt32(); // packed_size
+                var planes = Unpack (reader, unpacked_size);
+                var pixels = new byte[planes.Length];
+                int plane_size = (int)info.Width*(int)info.Height;
+                int b_src = 0;
+                int g_src = b_src+plane_size;
+                int r_src = g_src+plane_size;
+                int alpha_src = r_src+plane_size;
+                int dst = 0;
+                while (dst < pixels.Length)
+                {
+                    pixels[dst++] = planes[b_src++];
+                    pixels[dst++] = planes[g_src++];
+                    pixels[dst++] = planes[r_src++];
+                    pixels[dst++] = planes[alpha_src++];
+                }
+                return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
+            }
+        }
+
+        byte[] Unpack (BinaryReader input, int unpacked_size)
+        {
+            var output = new byte[unpacked_size];
+            int dst = 0;
+            int ctl = 2;
+            while (dst < output.Length)
+            {
+                ctl >>= 1;
+                if (1 == ctl)
+                {
+                    ctl = input.ReadByte() | 0x100;
+                }
+                int count;
+                if (0 != (ctl & 1))
+                {
+                    int src = input.ReadUInt16();
+                    count = input.ReadByte();
+                    if (dst >= 0xFFC)
+                        src += dst - 0xFFC;
+                    Binary.CopyOverlapped (output, src, dst, count);
+                }
+                else
+                {
+                    count = input.ReadByte();
+                    input.Read (output, dst, count);
+                }
+                dst += count;
+            }
+            return output;
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("Pgd11Format.Write not implemented");
+        }
+    }
+}