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Implemented SaveInternal for Stella Games' LzmaPack archive (.pack) ... I think

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This commit is contained in:
Michael Becker 2014-08-08 21:15:32 -04:00
parent 0b1cb3fa30
commit 2f0ff46a90
3 changed files with 123 additions and 0 deletions
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107
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/StellaGames/LzmaPack/PACKDataFormat.cs Normal file
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@ -0,0 +1,107 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UniversalEditor.IO;
using UniversalEditor.ObjectModels.FileSystem;
namespace UniversalEditor.DataFormats.FileSystem.StellaGames.LzmaPack
{
public class PACKDataFormat : DataFormat
{
private static DataFormatReference _dfr = null;
public override DataFormatReference MakeReference()
{
if (_dfr == null)
{
_dfr = base.MakeReference();
_dfr.Capabilities.Add(typeof(FileSystemObjectModel), DataFormatCapabilities.All);
_dfr.Filters.Add("Stella Games LzmaPack", new string[] { "*.pack" });
}
return _dfr;
}
protected override void LoadInternal(ref ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null) throw new ObjectModelNotSupportedException();
Reader reader = base.Accessor.Reader;
byte lzmaDecoderPropertiesSize = reader.ReadByte();
byte[] lzmaDecoderProperties = reader.ReadBytes(lzmaDecoderPropertiesSize);
uint fileCount = reader.ReadUInt32();
for (uint i = 0; i < fileCount; i++)
{
string fileName = reader.ReadLengthPrefixedString();
long decompressedSize = reader.ReadInt64();
long compressedSize = reader.ReadInt64();
long offset = reader.ReadInt64();
PACKFileAttributes fileAttributes = (PACKFileAttributes)reader.ReadUInt16();
File file = fsom.AddFile(fileName);
file.Size = decompressedSize;
file.Properties.Add("reader", reader);
file.Properties.Add("offset", offset);
file.Properties.Add("CompressedSize", compressedSize);
file.Properties.Add("DecompressedSize", decompressedSize);
file.DataRequest += file_DataRequest;
}
}
private void file_DataRequest(object sender, DataRequestEventArgs e)
{
File file = (sender as File);
Reader reader = (Reader)file.Properties["reader"];
long offset = (long)file.Properties["offset"];
long CompressedSize = (long)file.Properties["CompressedSize"];
long DecompressedSize = (long)file.Properties["DecompressedSize"];
reader.Seek(offset, SeekOrigin.Begin);
byte[] compressedData = reader.ReadBytes(CompressedSize);
byte[] decompressedData = compressedData;
e.Data = decompressedData;
}
protected override void SaveInternal(ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null) throw new ObjectModelNotSupportedException();
Writer writer = base.Accessor.Writer;
File[] files = fsom.GetAllFiles();
byte lzmaDecoderPropertiesSize = 0;
byte[] lzmaDecoderProperties = new byte[lzmaDecoderPropertiesSize];
writer.WriteByte(lzmaDecoderPropertiesSize);
writer.WriteBytes(lzmaDecoderProperties);
long offset = 1 + lzmaDecoderPropertiesSize + 4;
foreach (File file in files)
{
System.IO.MemoryStream ms = new System.IO.MemoryStream();
System.IO.BinaryWriter bw = new System.IO.BinaryWriter(ms);
bw.Write(file.Name);
bw.Close();
offset += ms.ToArray().Length;
offset += 26;
}
writer.WriteUInt32((uint)files.Length);
foreach (File file in files)
{
writer.WriteLengthPrefixedString(file.Name);
byte[] decompressedData = file.GetDataAsByteArray();
byte[] compressedData = decompressedData;
writer.WriteInt64((long)decompressedData.Length);
writer.WriteInt64((long)compressedData.Length);
writer.WriteInt64(offset);
PACKFileAttributes fileAttributes = PACKFileAttributes.None;
writer.WriteUInt16((ushort)fileAttributes);
offset += compressedData.Length;
}
}
}
}

14
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/StellaGames/LzmaPack/PACKFileAttributes.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace UniversalEditor.DataFormats.FileSystem.StellaGames.LzmaPack
{
[Flags()]
public enum PACKFileAttributes : ushort
{
None = 0,
Compressed = 1
}
}

2
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
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@ -138,6 +138,8 @@
<Compile Include="DataFormats\FileSystem\SevenZip\SevenZipUnpackInfo.cs" />
<Compile Include="DataFormats\FileSystem\SilentHill\ARC\SilentHillARCDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\SPIS\SPISDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\StellaGames\LzmaPack\PACKDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\StellaGames\LzmaPack\PACKFileAttributes.cs" />
<Compile Include="DataFormats\FileSystem\StuffIt\StuffItDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\TapeArchive\TapeArchiveDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\TapeArchive\TapeArchiveRecordType.cs" />