/// <summary>
/// Create IMG archive from directory
/// </summary>
/// <param name="sourceDirectoryName">Source directory name</param>
/// <param name="destinationArchiveFileName">Destination aechive file name</param>
/// <param name="includeBaseDirectory">Include base directory into archive</param>
/// <param name="entryNameEncoding">Entry name encoding</param>
public static void CreateFromDirectory(string sourceDirectoryName, string destinationArchiveFileName, bool includeBaseDirectory, Encoding entryNameEncoding)
{
try
{
if ((sourceDirectoryName != null) && (destinationArchiveFileName != null) && (entryNameEncoding != null))
{
string source_directory_name = Path.GetFullPath(sourceDirectoryName.TrimEnd('\\', '/'));
string destination_archive_file_name = Path.GetFullPath(destinationArchiveFileName);
if (Directory.Exists(source_directory_name))
{
string[] files = Directory.GetFiles(source_directory_name, "*", SearchOption.AllDirectories);
string[] relative_files = new string[files.Length];
bool file_name_lenghts_ok = true;
for (int i = 0; i < files.Length; i++)
{
relative_files[i] = IMGUtils.GetRelativePath(files[i], includeBaseDirectory ? Directory.GetParent(source_directory_name).FullName : source_directory_name).Replace('\\', '/');
if (relative_files[i].Length > 24)
{
file_name_lenghts_ok = false;
break;
}
}
if (file_name_lenghts_ok)
{
using (FileStream archive_stream = File.Open(destination_archive_file_name, FileMode.Create))
{
using (BinaryWriter archive_writer = new BinaryWriter(archive_stream))
{
int first_entry_offset = ((((files.Length * 32) % 2048) == 0) ? ((files.Length * 32) / 2048) : (((files.Length * 32) / 2048) + 1));
int current_entry_offset = first_entry_offset;
List <KeyValuePair <string, int> > entries = new List <KeyValuePair <string, int> >();
archive_writer.Write(new byte[] { 0x56, 0x45, 0x52, 0x32, (byte)(files.Length & 0xFF), (byte)((files.Length >> 8) & 0xFF), 0x0, 0x0 });
for (int i = 0; i < files.Length; i++)
{
long file_length = (new FileInfo(files[i])).Length;
int entry_length = (int)(((file_length % 2048L) == 0L) ? (file_length / 2048L) : ((file_length / 2048L) + 1L));
byte[] name_bytes_raw = entryNameEncoding.GetBytes(relative_files[i]);
byte[] name_bytes = new byte[24];
Array.Copy(name_bytes_raw, name_bytes, Math.Min(name_bytes_raw.Length, name_bytes.Length));
archive_writer.Write(current_entry_offset);
archive_writer.Write(new byte[] { (byte)(entry_length & 0xFF), (byte)((entry_length >> 8) & 0xFF), 0x0, 0x0 });
archive_writer.Write(name_bytes);
entries.Add(new KeyValuePair <string, int>(files[i], current_entry_offset));
current_entry_offset += entry_length;
}
foreach (KeyValuePair <string, int> entry in entries)
{
using (FileStream stream = File.Open(entry.Key, FileMode.Open, FileAccess.Read))
{
while ((archive_stream.Length / 2048) < entry.Value)
{
archive_stream.WriteByte(0);
}
byte[] data = new byte[stream.Length];
stream.Read(data, 0, (int)(stream.Length));
archive_writer.Write(data);
}
}
while ((archive_stream.Length / 2048) < current_entry_offset)
{
archive_stream.WriteByte(0);
}
}
}
}
}
}
}
catch (Exception e)
{
Console.Error.WriteLine(e);
}
}
/// <summary>
/// Open IMG archive
/// </summary>
/// <param name="archiveFileName">Archive file name</param>
/// <param name="archiveMode">Archive mode</param>
/// <param name="entryNameEncoding">Entry name encoding</param>
/// <returns>IMG archive</returns>
/// <exception cref="InvalidOperationException">Return value is null</exception>
/// <exception cref="ArgumentNullException">Archive file name is null</exception>
/// <exception cref="FileNotFoundException">Archive file not found</exception>
/// <exception cref="InvalidDataException">Archive error</exception>
public static IMGArchive Open(string archiveFileName, EIMGArchiveMode archiveMode, Encoding entryNameEncoding)
{
IMGArchive ret = null;
try
{
Encoding encoding = ((entryNameEncoding == null) ? Encoding.UTF8 : entryNameEncoding);
if (archiveFileName != null)
{
if ((archiveMode == EIMGArchiveMode.Create) || File.Exists(archiveFileName))
{
ret = new IMGArchive(File.Open(archiveFileName, (archiveMode == EIMGArchiveMode.Create) ? FileMode.Create : FileMode.Open, (archiveMode != EIMGArchiveMode.Read) ? FileAccess.ReadWrite : FileAccess.Read), archiveMode, entryNameEncoding);
if (archiveMode == EIMGArchiveMode.Create)
{
byte[] header_bytes = new byte[] { 0x56, 0x45, 0x52, 0x32, 0x0, 0x0, 0x0, 0x0 };
ret.Stream.Write(header_bytes, 0, header_bytes.Length);
while (ret.Stream.Length < 2048)
{
ret.Stream.WriteByte(0);
}
}
else
{
byte[] version_bytes = new byte[4];
if (ret.Stream.Read(version_bytes, 0, version_bytes.Length) == version_bytes.Length)
{
string version = Encoding.UTF8.GetString(version_bytes);
byte[] int_bytes = new byte[4];
if (ret.Stream.Read(int_bytes, 0, int_bytes.Length) == int_bytes.Length)
{
uint num_entries = int_bytes[0] | (((uint)(int_bytes[1])) << 8) | (((uint)(int_bytes[2])) << 16) | (((uint)(int_bytes[3])) << 24);
if ((version == "VER2") && (ret.Stream.Length >= (num_entries * 8)))
{
for (uint num_entry = 0U; num_entry != num_entries; num_entry++)
{
if (ret.Stream.Read(int_bytes, 0, int_bytes.Length) == int_bytes.Length)
{
long offset = (int_bytes[0] | (((long)(int_bytes[1])) << 8) | (((long)(int_bytes[2])) << 16) | (((long)(int_bytes[3])) << 24)) * 2048L;
byte[] short_bytes = new byte[2];
if (ret.Stream.Read(short_bytes, 0, short_bytes.Length) == short_bytes.Length)
{
int length = (short_bytes[0] | (short_bytes[1] << 8)) * 2048;
if (ret.Stream.Read(short_bytes, 0, short_bytes.Length) == short_bytes.Length)
{
byte[] full_name_bytes_raw = new byte[24];
if (ret.Stream.Read(full_name_bytes_raw, 0, full_name_bytes_raw.Length) == full_name_bytes_raw.Length)
{
int full_name_bytes_count = IMGUtils.GetNullTerminatedByteStringLength(full_name_bytes_raw);
if (full_name_bytes_count > 0)
{
string full_name = encoding.GetString(full_name_bytes_raw, 0, full_name_bytes_count);
ret.entries.Add(full_name.ToLower(), new IMGArchiveEntry(ret, offset, length, full_name));
}
else
{
throw new InvalidDataException("IMG entry name can't be empty.");
}
}
else
{
throw new InvalidDataException("IMG entry name is missing.");
}
}
else
{
throw new InvalidDataException("IMG entry length is missing.");
}
}
else
{
throw new InvalidDataException("IMG entry length is missing.");
}
}
else
{
throw new InvalidDataException("IMG entry offset is missing.");
}
}
}
else
{
throw new InvalidDataException("\"" + archiveFileName + "\" is not an IMG file");
}
}
else
{
throw new InvalidDataException("\"" + archiveFileName + "\" is not an IMG file");
}
}
else
{
throw new InvalidDataException("\"" + archiveFileName + "\" is not an IMG file");
}
}
}
else
{
throw new FileNotFoundException("Archive not found", archiveFileName);
}
}
else
{
throw new ArgumentNullException("archiveFileName");
}
if (ret == null)
{
throw new InvalidOperationException("Return value is null");
}
}
catch (Exception e)
{
if (ret != null)
{
ret.Dispose();
ret = null;
}
throw e;
}
return(ret);
}
