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Add support for C&C Generals .big archive files

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This commit is contained in:
ScottNZ
2014-08-15 15:21:05 +12:00
parent c8b3628852
commit 009dc79222
3 changed files with 137 additions and 19 deletions
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111
OpenRA.Game/FileSystem/BigFile.cs Normal file
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@@ -0,0 +1,111 @@
#region Copyright & License Information
/*
* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation. For more information,
* see COPYING.
*/
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
namespace OpenRA.FileSystem
{
public class BigFile : IFolder
{
public string Name { get; private set; }
public int Priority { get; private set; }
readonly Dictionary<string, Entry> entries = new Dictionary<string, Entry>();
public BigFile(string filename, int priority)
{
Name = filename;
Priority = priority;
var s = GlobalFileSystem.Open(filename);
if (s.ReadASCII(4) != "BIGF")
throw new InvalidDataException("Header is not BIGF");
// Total archive size.
s.ReadUInt32();
var entryCount = s.ReadUInt32();
if (BitConverter.IsLittleEndian)
entryCount = int2.Swap(entryCount);
// First entry offset? This is apparently bogus for EA's .big files
// and we don't have to try seeking there since the entries typically start next in EA's .big files.
s.ReadUInt32();
for (var i = 0; i < entryCount; i++)
{
var entry = new Entry(s);
entries.Add(entry.Path, entry);
}
}
class Entry
{
readonly Stream s;
readonly uint offset;
readonly uint size;
public readonly string Path;
public Entry(Stream s)
{
this.s = s;
offset = s.ReadUInt32();
size = s.ReadUInt32();
if (BitConverter.IsLittleEndian)
{
offset = int2.Swap(offset);
size = int2.Swap(size);
}
Path = s.ReadASCIIZ();
}
public Stream GetData()
{
s.Position = offset;
return new MemoryStream(s.ReadBytes((int)size));
}
}
public Stream GetContent(string filename)
{
return entries[filename].GetData();
}
public bool Exists(string filename)
{
return entries.ContainsKey(filename);
}
public IEnumerable<uint> ClassicHashes()
{
return entries.Keys.Select(filename => PackageEntry.HashFilename(filename, PackageHashType.Classic));
}
public IEnumerable<uint> CrcHashes()
{
return Enumerable.Empty<uint>();
}
public IEnumerable<string> AllFileNames()
{
return entries.Keys;
}
public void Write(Dictionary<string, byte[]> contents)
{
throw new NotImplementedException();
}
}
}

44
OpenRA.Game/FileSystem/GlobalFileSystem.cs
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@@ -62,40 +62,46 @@ namespace OpenRA.FileSystem
{
if (filename.EndsWith(".mix", StringComparison.InvariantCultureIgnoreCase))
return new MixFile(filename, order, content);
else if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase))
return new ZipFile(filename, order, content);
else if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
return new ZipFile(filename, order, content);
else if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("Creating .RS archives is unsupported");
else if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("Creating .Z archives is unsupported");
else if (filename.EndsWith(".PAK", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("Creating .PAK archives is unsupported");
else
return new Folder(filename, order, content);
if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("The creation of .RS archives is unimplemented");
if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("The creation of .Z archives is unimplemented");
if (filename.EndsWith(".PAK", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("The creation of .PAK archives is unimplemented");
if (filename.EndsWith(".big", StringComparison.InvariantCultureIgnoreCase))
throw new NotImplementedException("The creation of .big archives is unimplemented");
return new Folder(filename, order, content);
}
public static IFolder OpenPackage(string filename, string annotation, int order)
{
if (filename.EndsWith(".mix", StringComparison.InvariantCultureIgnoreCase))
{
var type = string.IsNullOrEmpty(annotation) ? PackageHashType.Classic :
FieldLoader.GetValue<PackageHashType>("(value)", annotation);
var type = string.IsNullOrEmpty(annotation)
? PackageHashType.Classic
: FieldLoader.GetValue<PackageHashType>("(value)", annotation);
return new MixFile(filename, type, order);
}
else if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase))
return new ZipFile(filename, order);
else if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
return new ZipFile(filename, order);
else if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
return new D2kSoundResources(filename, order);
else if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
return new InstallShieldPackage(filename, order);
else if (filename.EndsWith(".PAK", StringComparison.InvariantCultureIgnoreCase))
if (filename.EndsWith(".PAK", StringComparison.InvariantCultureIgnoreCase))
return new PakFile(filename, order);
else
return new Folder(filename, order);
if (filename.EndsWith(".big", StringComparison.InvariantCultureIgnoreCase))
return new BigFile(filename, order);
return new Folder(filename, order);
}
public static void Mount(string name)

1
OpenRA.Game/OpenRA.Game.csproj
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@@ -255,6 +255,7 @@
<Compile Include="FileSystem\MixFile.cs" />
<Compile Include="FileSystem\Pak.cs" />
<Compile Include="FileSystem\ZipFile.cs" />
<Compile Include="FileSystem\BigFile.cs" />
<Compile Include="Map\PlayerReference.cs" />
<Compile Include="Map\SmudgeReference.cs" />
<Compile Include="Map\TileReference.cs" />