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Added Roxor In the Groove PCK data format (without compression)

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Michael Becker 2014-10-04 15:13:38 -04:00
parent 28bcb33deb
commit 5dcb7b822d
2 changed files with 126 additions and 0 deletions
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125
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Roxor/PCK/PCKDataFormat.cs Normal file
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@ -0,0 +1,125 @@
using System;
using System.Collections.Generic;
using System.Linq;
using UniversalEditor.IO;
using UniversalEditor.ObjectModels.FileSystem;
namespace UniversalEditor.DataFormats.FileSystem.Roxor.PCK
{
public class PCKDataFormat : 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("Roxor In the Groove PCK archive", new byte?[][] { new byte?[] { (byte)'P', (byte)'C', (byte)'K', (byte)'F' } }, new string[] { "*.pck" });
_dfr.ExportOptions.Add(new CustomOptionText("Comment", "&Comment: ", String.Empty, 128));
}
return _dfr;
}
private string mvarComment = String.Empty;
public string Comment { get { return mvarComment; } set { mvarComment = value; } }
protected override void LoadInternal(ref ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null) throw new ObjectModelNotSupportedException();
Reader reader = base.Accessor.Reader;
string signature = reader.ReadFixedLengthString(4);
if (signature != "PCKF") throw new InvalidDataFormatException("File does not begin with 'PCKF'");
mvarComment = reader.ReadFixedLengthString(128, Encoding.Windows1252);
mvarComment = mvarComment.TrimNull();
uint fileCount = reader.ReadUInt32();
for (uint i = 0; i < fileCount; i++)
{
uint compressedlength = reader.ReadUInt32();
uint decompressedLength = reader.ReadUInt32();
uint offset = reader.ReadUInt32();
uint fileNameLength = reader.ReadUInt32();
bool compressed = (reader.ReadUInt32() != 0);
string fileName = reader.ReadFixedLengthString(fileNameLength, Encoding.Windows1252);
File file = fsom.AddFile(fileName);
file.Size = decompressedLength;
file.Properties.Add("reader", reader);
file.Properties.Add("offset", offset);
file.Properties.Add("compressed", compressed);
file.Properties.Add("CompressedLength", compressedlength);
file.Properties.Add("DecompressedLength", decompressedLength);
file.DataRequest += file_DataRequest;
}
}
private void file_DataRequest(object sender, DataRequestEventArgs e)
{
File file = (sender as File);
Reader reader = (Reader)file.Properties["reader"];
uint offset = (uint)file.Properties["offset"];
uint compressedLength = (uint)file.Properties["CompressedLength"];
uint decompressedLength = (uint)file.Properties["DecompressedLength"];
bool compressed = (bool)file.Properties["compressed"];
reader.Seek(offset, SeekOrigin.Begin);
byte[] compressedData = reader.ReadBytes(compressedLength);
byte[] decompressedData = compressedData;
if (compressed)
{
}
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;
writer.WriteFixedLengthString("PCKF");
writer.WriteFixedLengthString(mvarComment, Encoding.Windows1252, 128);
File[] files = fsom.GetAllFiles();
writer.WriteUInt32((uint)files.Length);
uint offset = 136;
foreach (File file in files)
{
offset += (uint)(20 + file.Name.Length);
}
byte[][] compressedDatas = new byte[files.Length][];
for (int i = 0; i < files.Length; i++)
{
File file = files[i];
bool compressed = false;
byte[] decompressedData = file.GetDataAsByteArray();
byte[] compressedData = decompressedData;
compressedDatas[i] = compressedData;
writer.WriteUInt32((uint)compressedData.Length);
writer.WriteUInt32((uint)decompressedData.Length);
writer.WriteUInt32(offset);
writer.WriteUInt32((uint)file.Name.Length);
writer.WriteUInt32((uint)(compressed ? 1 : 0));
writer.WriteFixedLengthString(file.Name, Encoding.Windows1252, (uint)file.Name.Length);
offset += (uint)file.Size;
}
for (int i = 0; i < files.Length; i++)
{
writer.WriteBytes(compressedDatas[i]);
}
writer.Flush();
}
}
}

1
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
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@ -130,6 +130,7 @@
<Compile Include="DataFormats\FileSystem\PRF\PRFDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\ProDOS\ProDOSDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\REEVEsoft\Freeze\ICEDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\Roxor\PCK\PCKDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\SevenZip\SevenZipBlockType.cs" />
<Compile Include="DataFormats\FileSystem\SevenZip\SevenZipCoder.cs" />
<Compile Include="DataFormats\FileSystem\SevenZip\SevenZipCoderFlags.cs" />