103 lines
2.3 KiB
C#
103 lines
2.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2013 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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namespace OpenRA.FileFormats
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{
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public class D2kSoundResources : IFolder
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{
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readonly Stream s;
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readonly string filename;
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readonly List<string> filenames;
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readonly int priority;
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readonly Dictionary<uint, PackageEntry> index = new Dictionary<uint, PackageEntry>();
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public D2kSoundResources(string filename, int priority)
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{
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this.filename = filename;
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this.priority = priority;
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s = FileSystem.Open(filename);
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s.Seek(0, SeekOrigin.Begin);
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filenames = new List<string>();
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var headerLength = s.ReadUInt32();
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while (s.Position < headerLength + 4)
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{
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var name = s.ReadASCIIZ();
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var offset = s.ReadUInt32();
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var length = s.ReadUInt32();
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var hash = PackageEntry.HashFilename(name, PackageHashType.Classic);
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if (!index.ContainsKey(hash))
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index.Add(hash, new PackageEntry(hash, offset, length));
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filenames.Add(name);
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}
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}
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public Stream GetContent(uint hash)
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{
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PackageEntry e;
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if (!index.TryGetValue(hash, out e))
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return null;
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s.Seek(e.Offset, SeekOrigin.Begin);
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var data = new byte[e.Length];
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s.Read(data, 0, (int)e.Length);
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return new MemoryStream(data);
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}
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public Stream GetContent(string filename)
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{
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return GetContent(PackageEntry.HashFilename(filename, PackageHashType.Classic));
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}
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public bool Exists(string filename)
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{
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return index.ContainsKey(PackageEntry.HashFilename(filename, PackageHashType.Classic));
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}
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public IEnumerable<string> AllFileNames()
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{
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return filenames;
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}
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public string Name { get { return filename; } }
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public int Priority { get { return 1000 + priority; }}
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public IEnumerable<uint> ClassicHashes()
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{
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return index.Keys;
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}
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public IEnumerable<uint> CrcHashes()
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{
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yield break;
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}
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public void Write(Dictionary<string, byte[]> contents)
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{
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throw new NotImplementedException("Cannot save Dune 2000 Sound Resources.");
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}
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}
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}
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