(Legacy): DM archives and PKT images.

2026-07-08 01:30:18 +08:00 · 2018-10-07 08:59:21 +04:00
parent 4b67d5f82d
commit 803dfdfdda
2 changed files with 268 additions and 0 deletions
--- a/Legacy/DigitalMonkey/ArcDM.cs
+++ b/Legacy/DigitalMonkey/ArcDM.cs
@@ -0,0 +1,85 @@
+//! \file       ArcDM.cs
+//! \date       2018 Oct 07
+//! \brief      Digital Monkey resource archive.
+//
+// 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Compression;
+
+namespace GameRes.Formats.DigitalMonkey
+{
+    [Export(typeof(ArchiveFormat))]
+    public class DmOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "DM"; } }
+        public override string Description { get { return "Digital Monkey resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.HasExtension (".dm"))
+                return null;
+            int count = file.View.ReadInt32 (0);
+            if (!IsSaneCount (count))
+                return null;
+            var arc_name = Path.GetFileNameWithoutExtension (file.Name).ToLowerInvariant();
+            string type = arc_name == "image" ? "image"
+                        : arc_name == "sound" ? "audio" : "";
+            uint index_offset = 4;
+            uint data_offset = 4 + (uint)count * 0x2C;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var name = file.View.ReadString (index_offset, 0x20);
+                if (string.IsNullOrWhiteSpace (name))
+                    return null;
+                var entry = new PackedEntry {
+                    Name = name,
+                    Type = type,
+                    UnpackedSize = file.View.ReadUInt32 (index_offset+0x20),
+                    Size   = file.View.ReadUInt32 (index_offset+0x24),
+                    Offset = file.View.ReadUInt32 (index_offset+0x28),
+                    IsPacked = true,
+                };
+                if (entry.Offset < data_offset || !entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 0x2C;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var pent = (PackedEntry)entry;
+            if (null == pent || !pent.IsPacked)
+                return base.OpenEntry (arc, entry);
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new ZLibStream (input, CompressionMode.Decompress);
+        }
+    }
+}