public void ExtractFontFiles(string outputDirectory)
{
var fontPatchDescriptor = manifest.Patches.First(patch => patch.PatchIdentifier == EnglishFontDescriptorId);
var manifestChunkDescriptorIndex = fontPatchDescriptor.PatchStart;
var manifestChunk = manifest.Chunks[(int)manifestChunkDescriptorIndex];
var chunkDescriptor = chunkDescriptors.First(desc => desc.Offset == manifestChunk.BasePosition);
var fileLengthsMapping = new Queue <int>();
using (StreamWriter descriptorWriter = new StreamWriter(File.Open(outputDirectory + @"\fonts.descriptor", FileMode.Create)))
{
using (var completeDecompressedMemoryStream = new MemoryStream())
{
for (int i = 1; i < fontPatchDescriptor.PatchLength; i++)
{
var patchChunkDescriptor = manifest.Chunks[(int)manifestChunkDescriptorIndex + i];
if (patchChunkDescriptor.DirectoryId != (byte)DirectoryNames.InitialExperienceBase && patchChunkDescriptor.DirectoryId != (byte)DirectoryNames.InitialExperiencePatch)
{
throw new ArgumentException("Not supported");
}
var dataDir = patchChunkDescriptor.DirectoryId == (byte)DirectoryNames.InitialExperienceBase ? DataDirs[0] : DataDirs[1];
string compoundName = BaseDirectory + dataDir + @"\cas_" + (patchChunkDescriptor.Archive + 1).ToString("00") + ".cas";
using (BinaryReader reader = new BinaryReader(File.Open(compoundName, FileMode.Open)))
{
using (BinaryWriter writer = new BinaryWriter(completeDecompressedMemoryStream, ASCIIEncoding.ASCII, true))
{
reader.BaseStream.Seek(patchChunkDescriptor.BasePosition, SeekOrigin.Begin);
var decompressedSize = ChunkHandler.Dechunk(writer, reader, (int)patchChunkDescriptor.BaseLength);
fileLengthsMapping.Enqueue(decompressedSize);
}
}
}
completeDecompressedMemoryStream.Seek(0, SeekOrigin.Begin);
var currentTargetLength = fileLengthsMapping.Dequeue();
var subtotalLength = 0;
foreach (var ebx in chunkDescriptor.EbxDescriptors)
{
var resourceName = BuildResourceName("ebx", ebx);
ExtractFileFromIntermediateResourceDescriptor(outputDirectory, completeDecompressedMemoryStream, ebx, resourceName);
WriteToLengthsDescriptor(fileLengthsMapping, descriptorWriter, ref currentTargetLength, ref subtotalLength, ebx, resourceName);
}
foreach (var data in chunkDescriptor.DataDescriptors)
{
var resourceName = BuildResourceName("data", data);
ExtractFileFromIntermediateResourceDescriptor(outputDirectory, completeDecompressedMemoryStream, data, BuildResourceName("data", data));
WriteToLengthsDescriptor(fileLengthsMapping, descriptorWriter, ref currentTargetLength, ref subtotalLength, data, resourceName);
}
}
}
}
public void WriteFileFromManifest(Chunk chunk, string directory, string fileName)
{
string compoundName = ResolveLanguageCasFile(chunk);
using (BinaryReader reader = new BinaryReader(File.Open(compoundName, FileMode.Open)))
{
reader.BaseStream.Seek(chunk.BasePosition, SeekOrigin.Begin);
string finalDirectory = directory + @"\manifest\";
string finalName = finalDirectory + fileName;
Directory.CreateDirectory(finalDirectory);
ChunkHandler.Dechunk(finalName, reader, (int)chunk.BaseLength);
}
}
public void WriteFileFromCatalogue(CatalogueEntry entry, string directory)
{
string compoundName = Path.GetDirectoryName(entry.Parent.Path) + @"\cas_" + entry.Archive.ToString("00") + ".cas";
using (BinaryReader reader = new BinaryReader(File.Open(compoundName, FileMode.Open)))
{
reader.BaseStream.Seek(entry.Offset, SeekOrigin.Begin);
string finalDirectory = directory + @"\cat\";
string finalName = finalDirectory + entry.ResolvedName;
Directory.CreateDirectory(finalDirectory);
ChunkHandler.Dechunk(finalName, reader, entry.Size);
}
}
