(Experimental): limited support of EXE file resources.

2026-07-08 01:30:18 +08:00 · 2023-09-07 12:23:55 +04:00
parent 8c345b5911
commit a2d0118784
3 changed files with 289 additions and 0 deletions
--- a/Experimental/Microsoft/ArcNE.cs
+++ b/Experimental/Microsoft/ArcNE.cs
@@ -0,0 +1,103 @@
+//! \file       ArcNE.cs
+//! \date       2023 Aug 29
+//! \brief      Access 16-bit NE executable resources.
+//
+// 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Microsoft
+{
+    [Export(typeof(ArchiveFormat))]
+    public class PakOpener : ArchiveFormat
+    {
+        public override string         Tag { get => "EXE/NE"; }
+        public override string Description { get => "Windows 16-bit executable resources"; }
+        public override uint     Signature { get => 0; }
+        public override bool  IsHierarchic { get => true; }
+        public override bool      CanWrite { get => false; }
+
+        static readonly Dictionary<int, string> TypeMap = new Dictionary<int, string> {
+            { 1, "RT_CURSOR" },
+            { 2, "RT_BITMAP" },
+            { 3, "RT_ICON" },
+            { 4, "RT_MENU" },
+            { 5, "RT_DIALOG" },
+            { 6, "RT_STRING" },
+            { 10, "RT_DATA" },
+            { 11, "RT_MESSAGETABLE" },
+            { 16, "RT_VERSION" },
+        };
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.View.AsciiEqual (0, "MZ"))
+                return null;
+            uint ne_offset = file.View.ReadUInt32 (0x3C);
+            if (!file.View.AsciiEqual (ne_offset, "NE"))
+                return null;
+            uint res_table_offset = file.View.ReadUInt16 (ne_offset+0x24) + ne_offset;
+            if (res_table_offset <= ne_offset || res_table_offset >= file.MaxOffset)
+                return null;
+            int shift = file.View.ReadUInt16 (res_table_offset);
+            res_table_offset += 2;
+            var dir = new List<Entry>();
+            while (res_table_offset + 1 < file.MaxOffset)
+            {
+                int type_id = file.View.ReadUInt16 (res_table_offset);
+                if (0 == type_id)
+                    break;
+                string dir_name = null;
+                if ((type_id & 0x8000) != 0)
+                {
+                    type_id &= 0x7FFF;
+                    TypeMap.TryGetValue (type_id, out dir_name);
+                }
+                int count = file.View.ReadUInt16 (res_table_offset+2);
+                res_table_offset += 8;
+                if (null == dir_name)
+                    dir_name = string.Format ("#{0}", type_id);
+                for (int i = 0; i < count; ++i)
+                {
+                    int offset = file.View.ReadUInt16 (res_table_offset) << shift;
+                    uint size = (uint)file.View.ReadUInt16 (res_table_offset+2) << shift;
+                    int res_id = file.View.ReadUInt16 (res_table_offset+6);
+                    res_table_offset += 12;
+                    string name = res_id.ToString ("D5");
+                    name = string.Join ("/", dir_name, name);
+                    var entry = new Entry {
+                        Name = name,
+                        Offset = offset,
+                        Size = size,
+                    };
+                    dir.Add (entry);
+                }
+            }
+            if (0 == dir.Count)
+                return null;
+            return new ArcFile (file, this, dir);
+        }
+    }
+}