private ME1Package(string path)
{
DebugOutput.PrintLn("Load file : " + path);
FileName = Path.GetFullPath(path);
MemoryStream tempStream = new MemoryStream();
if (!File.Exists(FileName))
throw new FileNotFoundException("PCC file not found");
using (FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read))
{
FileInfo tempInfo = new FileInfo(FileName);
tempStream.WriteFromStream(fs, tempInfo.Length);
if (tempStream.Length != tempInfo.Length)
{
throw new FileLoadException("File not fully read in. Try again later");
}
}
tempStream.Seek(12, SeekOrigin.Begin);
int tempNameSize = tempStream.ReadValueS32();
tempStream.Seek(64 + tempNameSize, SeekOrigin.Begin);
int tempGenerations = tempStream.ReadValueS32();
tempStream.Seek(36 + tempGenerations * 12, SeekOrigin.Current);
int tempPos = (int)tempStream.Position + 4;
tempStream.Seek(0, SeekOrigin.Begin);
header = tempStream.ReadBytes(tempPos);
tempStream.Seek(0, SeekOrigin.Begin);
if (magic != ZBlock.magic && magic.Swap() != ZBlock.magic)
{
DebugOutput.PrintLn("Magic number incorrect: " + magic);
throw new FormatException("This is not an ME1 Package file. The magic number is incorrect.");
}
MemoryStream listsStream;
if (IsCompressed)
{
DebugOutput.PrintLn("File is compressed");
listsStream = CompressionHelper.DecompressME1orME2(tempStream);
//Correct the header
IsCompressed = false;
listsStream.Seek(0, SeekOrigin.Begin);
listsStream.WriteBytes(header);
// Set numblocks to zero
listsStream.WriteValueS32(0);
//Write the magic number
listsStream.WriteBytes(new byte[] { 0xF2, 0x56, 0x1B, 0x4E });
// Write 4 bytes of 0
listsStream.WriteValueS32(0);
}
else
{
DebugOutput.PrintLn("File already decompressed. Reading decompressed data.");
//listsStream = tempStream;
listsStream = new MemoryStream();
tempStream.WriteTo(listsStream);
}
tempStream.Dispose();
ReadNames(listsStream);
ReadImports(listsStream);
ReadExports(listsStream);
}
