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Added Dynamix/Starsiege VOL archive data format (tested with PakScape, mostly working, some features untested/unsure)

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This commit is contained in:
Michael Becker 2014-11-11 11:05:26 -05:00
parent 45f2c344b5
commit af4e4ce955
2 changed files with 189 additions and 0 deletions
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188
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Dynamix/VOL/VOLDataFormat.cs Normal file
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@ -0,0 +1,188 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UniversalEditor.Accessors;
using UniversalEditor.IO;
using UniversalEditor.ObjectModels.FileSystem;
namespace UniversalEditor.DataFormats.FileSystem.Dynamix.VOL
{
public class VOLDataFormat : 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("Dynamix/Starsiege VOL archive", new byte?[][] { new byte?[] { (byte)'P', (byte)'V', (byte)'O', (byte)'L' } }, new string[] { "*.vol" });
_dfr.ID = new Guid("{7AB0E953-243D-4DA4-BC2F-766CF0F5168A}");
}
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;
string PVOL = reader.ReadFixedLengthString(4);
if (PVOL != "PVOL") throw new InvalidDataFormatException();
uint offsetToVOLSChunk = reader.ReadUInt32();
base.Accessor.Seek(offsetToVOLSChunk, SeekOrigin.Begin);
string VOLS = reader.ReadFixedLengthString(4);
if (VOLS != "vols") throw new InvalidDataFormatException("Missing or corrupted 'vols' chunk");
uint volsLength = reader.ReadUInt32();
byte[] volsData = reader.ReadBytes(volsLength);
MemoryAccessor volsAccessor = new MemoryAccessor(volsData);
Reader volsReader = new Reader(volsAccessor);
string VOLI = reader.ReadFixedLengthString(4);
if (VOLI != "voli") throw new InvalidDataFormatException("Missing or corrupted 'voli' chunk");
uint voliLength = reader.ReadUInt32();
uint fileCount = (uint)(voliLength / 17);
for (uint i = 0; i < fileCount; i++)
{
uint unknown = reader.ReadUInt32();
uint fileNameOffset = reader.ReadUInt32();
uint offset = reader.ReadUInt32();
uint length = reader.ReadUInt32();
byte nul = reader.ReadByte();
volsReader.Seek(fileNameOffset, SeekOrigin.Begin);
string fileName = volsReader.ReadNullTerminatedString();
File file = fsom.AddFile(fileName);
file.Properties.Add("offset", offset);
file.Properties.Add("length", length);
file.Properties.Add("reader", reader);
file.Size = length;
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 length = (uint)file.Properties["length"];
reader.Seek(offset, SeekOrigin.Begin);
string VBLK = reader.ReadFixedLengthString(4);
if (VBLK != "VBLK") throw new InvalidDataFormatException("Data chunk does not begin with 'VBLK'");
byte unknown1 = reader.ReadByte();
ushort unknown2 = reader.ReadUInt16(); // middle two bytes of file length??
byte unknown3 = reader.ReadByte(); // attributes?? set to 0x80
e.Data = reader.ReadBytes(length);
}
protected override void SaveInternal(ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null) throw new ObjectModelNotSupportedException();
Writer writer = base.Accessor.Writer;
writer.WriteFixedLengthString("PVOL");
File[] files = fsom.GetAllFiles();
uint offsetToVOLSChunk = 8;
foreach (File file in files)
{
// assuming one VBLK per file
offsetToVOLSChunk += 8;
offsetToVOLSChunk += (uint)file.Size;
}
writer.WriteUInt32(offsetToVOLSChunk);
foreach (File file in files)
{
writer.WriteFixedLengthString("VBLK");
writer.WriteUInt16((ushort)file.Size);
writer.WriteUInt16(32768);
writer.WriteBytes(file.GetDataAsByteArray());
}
#region VOLS chunk
{
writer.WriteFixedLengthString("vols");
uint volsChunkSize = 0;
foreach (File file in files)
{
// vols is file names, an array of null-terminated strings
volsChunkSize += (uint)(file.Name.Length + 1);
}
writer.WriteUInt32(volsChunkSize);
foreach (File file in files)
{
writer.WriteNullTerminatedString(file.Name);
}
}
#endregion
#region VOLI chunk
{
writer.WriteFixedLengthString("voli");
uint voliChunkSize = 0;
if (files.Length > 0)
{
foreach (File file in files)
{
voliChunkSize += 17;
}
}
writer.WriteUInt32(voliChunkSize);
if (files.Length > 0)
{
// first VBLK entry ALWAYS starts at offset 8
// (4 for the PVOL signature + 4 for the offset to vols chunk)
uint offset = 8;
uint fileNameOffset = 0;
foreach (File file in files)
{
// unknown
writer.WriteUInt32(0);
// offset into string table for the file name
writer.WriteUInt32(fileNameOffset);
// offset of first VBLK entry for the file
writer.WriteUInt32(offset);
// file size
writer.WriteUInt32((uint)file.Size);
offset += ((uint)file.Size + 8);
// nul byte at end of each entry in VOLI chunk... why??
writer.WriteByte(0);
fileNameOffset += (uint)(file.Name.Length + 1);
}
}
else
{
writer.WriteUInt32(0);
writer.WriteUInt32(0);
}
}
#endregion
}
}
}

1
CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
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@ -80,6 +80,7 @@
<Compile Include="DataFormats\FileSystem\DeepSilver\SecretFiles\SPRDirectoryInfo.cs" />
<Compile Include="DataFormats\FileSystem\DeepSilver\SecretFiles\SPRFileInfo.cs" />
<Compile Include="DataFormats\FileSystem\Dreamfall\PAKDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\Dynamix\VOL\VOLDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\Eighting\FPK\FPKDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\ElectronicArts\BIGFDataFormat.cs" />
<Compile Include="DataFormats\FileSystem\FARC\FARCDataFormat.cs" />