protected static void CloseDecompressor()
{
compReader.Close();
compReader = null;
inf = null;
input = null;
output = null;
}
protected static void InitDecompressor()
{
inf = new Inflater(false);
ms = new MemoryStream();
compReader = new BinaryReader(ms);
input = new byte[0x1000];
output = new byte[0x4000];
}
internal byte[] GetRawData()
{
bsa.br.BaseStream.Seek(offset, SeekOrigin.Begin);
if (bsa.SkipNames)
{
bsa.br.BaseStream.Position += bsa.br.ReadByte() + 1;
}
if (compressed)
{
var b = new byte[size - 4];
var output = new byte[bsa.br.ReadUInt32()];
bsa.br.Read(b, 0, size - 4);
var inf = new Inflater();
inf.SetInput(b, 0, b.Length);
inf.Inflate(output);
return output;
}
return bsa.br.ReadBytes(size);
}
public static void Trim(IntPtr hwnd, string In, string Out, ReportProgressDelegate del)
{
NativeMethods.ddsInit(hwnd);
var br = new BinaryReader(File.OpenRead(In), Encoding.Default);
var bw = new BinaryWriter(File.Create(Out), Encoding.Default);
var sb = new StringBuilder(64);
var inf = new Inflater();
bool Compressed, SkipName;
if (br.ReadInt32() != 0x00415342)
{
throw new Exception("Invalid bsa");
}
var version = br.ReadUInt32();
bw.Write(0x00415342);
bw.Write(version);
bw.Write(br.ReadInt32());
var flags = br.ReadUInt32();
if ((flags & 0x004) > 0)
{
Compressed = true;
flags ^= 0x4;
}
else
{
Compressed = false;
}
if ((flags & 0x100) > 0 && version == 0x68)
{
SkipName = true;
}
else
{
SkipName = false;
}
flags ^= 0x2;
var FolderCount = br.ReadInt32();
var FileCount = br.ReadInt32();
bw.Write(flags);
bw.Write(FolderCount);
bw.Write(FileCount);
bw.Write(br.ReadInt32());
bw.Write(br.ReadInt32());
bw.Write(br.ReadInt32());
var folderFileCount = new int[FolderCount];
for (var i = 0; i < FolderCount; i++)
{
bw.Write(br.ReadInt64());
folderFileCount[i] = br.ReadInt32();
bw.Write(folderFileCount[i]);
bw.Write(br.ReadInt32());
}
var fileLengths = new int[FileCount];
var offsetOffsets = new long[FileCount];
var fileOffsets = new uint[FileCount];
var parsefiles = new bool[FileCount];
var file = 0;
for (var i = 0; i < FolderCount; i++)
{
var len = br.ReadByte();
bw.Write(len);
sb.Length = 0;
while (--len > 0)
{
var c = br.ReadChar();
sb.Append(c);
bw.Write(c);
}
br.ReadByte();
bw.Write((byte) 0);
var parse = true;
if (sb.ToString().StartsWith("textures\\interface\\"))
{
parse = false;
}
for (var j = 0; j < folderFileCount[i]; j++)
{
bw.Write(br.ReadUInt64());
offsetOffsets[file] = br.BaseStream.Position;
fileLengths[file] = br.ReadInt32();
bw.Write(fileLengths[file]);
fileOffsets[file] = br.ReadUInt32();
bw.Write(fileOffsets[file]);
parsefiles[file] = parse;
file++;
}
}
for (var i = 0; i < FileCount; i++)
{
sb.Length = 0;
while (true)
{
var c = (char) br.ReadByte();
//bw.Write(c);
if (c == '\0')
{
break;
}
sb.Append(c);
}
if (!sb.ToString().EndsWith(".dds", StringComparison.OrdinalIgnoreCase))
{
parsefiles[i] = false;
}
}
for (var i = 0; i < FileCount; i++)
{
if ((i%100) == 0)
{
del("Processing file " + i + " of " + FileCount);
}
br.BaseStream.Position = fileOffsets[i];
var offset = bw.BaseStream.Position;
var add = 0;
if (SkipName)
{
var len = br.ReadByte();
bw.Write(len);
bw.Write(br.ReadBytes(len + 1));
add = len + 2;
}
var compressed2 = Compressed;
if ((fileLengths[i] & (1 << 30)) != 0)
{
compressed2 = !compressed2;
fileLengths[i] ^= (1 << 30);
}
if (!compressed2)
{
var bytes = new byte[fileLengths[i]];
br.Read(bytes, 0, fileLengths[i]);
Commit(bw, offsetOffsets[i], bytes, offset, add, parsefiles[i]);
}
else
{
var uncompressed = new byte[br.ReadUInt32()];
var compressed = new byte[fileLengths[i] - 4];
br.Read(compressed, 0, fileLengths[i] - 4);
inf.Reset();
inf.SetInput(compressed);
inf.Inflate(uncompressed);
Commit(bw, offsetOffsets[i], uncompressed, offset, add, parsefiles[i]);
}
}
br.Close();
bw.Close();
NativeMethods.ddsClose();
}