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104 lines
4.2 KiB
C#
104 lines
4.2 KiB
C#
//! \file ArcNE.cs
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//! \date 2023 Aug 29
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//! \brief Access 16-bit NE executable resources.
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//
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// Copyright (C) 2023 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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namespace GameRes.Formats.Microsoft
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{
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[Export(typeof(ArchiveFormat))]
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public class PakOpener : ArchiveFormat
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{
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public override string Tag { get => "EXE/NE"; }
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public override string Description { get => "Windows 16-bit executable resources"; }
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public override uint Signature { get => 0; }
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public override bool IsHierarchic { get => true; }
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public override bool CanWrite { get => false; }
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static readonly Dictionary<int, string> TypeMap = new Dictionary<int, string> {
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{ 1, "RT_CURSOR" },
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{ 2, "RT_BITMAP" },
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{ 3, "RT_ICON" },
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{ 4, "RT_MENU" },
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{ 5, "RT_DIALOG" },
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{ 6, "RT_STRING" },
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{ 10, "RT_DATA" },
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{ 11, "RT_MESSAGETABLE" },
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{ 16, "RT_VERSION" },
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};
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public override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (0, "MZ"))
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return null;
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uint ne_offset = file.View.ReadUInt32 (0x3C);
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if (!file.View.AsciiEqual (ne_offset, "NE"))
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return null;
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uint res_table_offset = file.View.ReadUInt16 (ne_offset+0x24) + ne_offset;
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if (res_table_offset <= ne_offset || res_table_offset >= file.MaxOffset)
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return null;
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int shift = file.View.ReadUInt16 (res_table_offset);
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res_table_offset += 2;
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var dir = new List<Entry>();
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while (res_table_offset + 1 < file.MaxOffset)
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{
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int type_id = file.View.ReadUInt16 (res_table_offset);
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if (0 == type_id)
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break;
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string dir_name = null;
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if ((type_id & 0x8000) != 0)
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{
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type_id &= 0x7FFF;
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TypeMap.TryGetValue (type_id, out dir_name);
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}
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int count = file.View.ReadUInt16 (res_table_offset+2);
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res_table_offset += 8;
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if (null == dir_name)
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dir_name = string.Format ("#{0}", type_id);
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for (int i = 0; i < count; ++i)
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{
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int offset = file.View.ReadUInt16 (res_table_offset) << shift;
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uint size = (uint)file.View.ReadUInt16 (res_table_offset+2) << shift;
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int res_id = file.View.ReadUInt16 (res_table_offset+6);
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res_table_offset += 12;
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string name = res_id.ToString ("D5");
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name = string.Join ("/", dir_name, name);
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var entry = new Entry {
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Name = name,
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Offset = offset,
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Size = size,
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};
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dir.Add (entry);
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}
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}
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if (0 == dir.Count)
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return null;
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return new ArcFile (file, this, dir);
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}
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}
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}
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