/// <exception cref="System.IO.IOException"></exception>
private byte[] CompressPackFormat(int type, byte[] data)
{
byte[] hdr = new byte[64];
int rawLength = data.Length;
int nextLength = (int)(((uint)rawLength) >> 4);
hdr[0] = unchecked((byte)((nextLength > 0 ? unchecked((int)(0x80)) : unchecked((int
)(0x00))) | (type << 4) | (rawLength & unchecked((int)(0x0F)))));
rawLength = nextLength;
int n = 1;
while (rawLength > 0)
{
nextLength = (int)(((uint)nextLength) >> 7);
hdr[n++] = unchecked((byte)((nextLength > 0 ? unchecked((int)(0x80)) : unchecked(
(int)(0x00))) | (rawLength & unchecked((int)(0x7F)))));
rawLength = nextLength;
}
ByteArrayOutputStream @out = new ByteArrayOutputStream();
@out.Write(hdr, 0, n);
DeflaterOutputStream d = new DeflaterOutputStream(@out);
d.Write(data);
d.Finish();
return @out.ToByteArray();
}
/// <exception cref="System.IO.IOException"></exception>
private byte[] CompressStandardFormat(string type, string length, byte[] data)
{
ByteArrayOutputStream @out = new ByteArrayOutputStream();
DeflaterOutputStream d = new DeflaterOutputStream(@out);
d.Write(Constants.EncodeASCII(type));
d.Write(' ');
d.Write(Constants.EncodeASCII(length));
d.Write(0);
d.Write(data);
d.Finish();
return @out.ToByteArray();
}