internal static R_MythicPackageData Pack(string current_file)
{
/*
* * [4] - Data Block/File (sizeof: 12+Lenght bytes)
* * WORD -> flag compressed ( 0008 )
* * WORD -> offset ( 0003 )
* * QWORD -> FileTime
* * BYTE(Lenght) 0xd88 -> compressed data
* * ...this is repeated until all Files from FileIndexes are processed
*/
FileStream reading = new FileStream(current_file, FileMode.Open);
int usize = (int)reading.Length; //Stream Size
int csize = usize; //Compressed Size REF
byte[] sourceData = new byte[usize]; //Stream to be compressed
byte[] destData = new byte[csize]; //Stream compressed
bool compressed = true; //Must say if datas are TO BE compressed or not.
R_MythicPackageData final = new R_MythicPackageData();
using (BinaryReader reader = new BinaryReader(reading))
{
reader.Read(sourceData, 0, usize);
}
if (sourceData.Length <= 10)//If file length is less than 10 bytes we do not compress it.
{
compressed = false;
}
if (compressed)
{
ZLibError error = Zlib.Zlib.Compress(destData, ref csize, sourceData, usize);
if (error != ZLibError.Okay)
throw new Exception(String.Format("Error Compressing: {0}", error));
}
else
{
csize = usize;
destData = sourceData;
}
final.Flag = 3; //Is this fixed?
final.DataOffset = 8; //And this?
final.DateTime = System.DateTime.Now.ToFileTime(); //To check
byte[] compressedData = new byte[csize];
for (int i = 0; i < csize; i++)
{
compressedData[i] = destData[i];
}
final.Data = compressedData; //Ok
final.Compressed = compressed; //Ok
final.C_size = csize; //Ok
final.U_size = usize; //Ok
return final;
}
internal static R_MythicPackageData Empty()
{
R_MythicPackageData d = new R_MythicPackageData();
d.Flag = 0;
d.Data = BitConverter.GetBytes(0);
d.DataOffset = 0;
d.DateTime = 0;
return(d);
}
internal static R_MythicPackageIndex Pack(string current_file, ref bool error)
{
/*- Create index for each data (sizeof: 34bytes )
* QWORD 0x34 -> Offset to start of Data Block of this file
* DWORD 0x3c -> Length of Data Block header (usually 0x0C)
* DWORD 0x40 -> Lenght of compressed data
* DWORD 0x44 -> Size of decompressed file
* QWORD 0x48 -> Filehash
* DWORD 0x50 -> Adler32 CRC of Data in littleEndian ( flag offset data )
* WORD 0x54 -> Compressed Flag
*/
R_MythicPackageData datas = new R_MythicPackageData();
R_MythicPackageIndex final = new R_MythicPackageIndex();
datas = R_MythicPackageData.Pack(current_file); //Pack current file datas
string toHash = ""; //Initialized "" to prevent error in hashing
/*error = false; //Actually we does not want to get out of the cycle
* //We are looking fo Build folder, that is the root.
* int inde = current_file.IndexOf("build\\");
* if (inde != -1) //if found
* toHash = current_file.Substring(Form1.FolderName.Length+1);
* toHash = toHash.Replace("\\", "/");
* //toHash = current_file.Substring(inde, current_file.Length - inde);
* else
* {
* MessageBox.Show("NO BUILD FOLDER FOUND!");
* error = true;//We are going out from cycle
* }*/
toHash = current_file.Substring(Form1.FolderName.Length + 1);
toHash = toHash.Replace("\\", "/");
bool compr = datas.Compressed; //Are datas compressed?
final.DataBlockOffset = 0; //Offset to start of Data Block of this file
final.HeadLength = 0x0C; //Is this fixed?
final.CompressedSize = datas.C_size; //Ok
final.DecompressedSize = datas.U_size; //Ok
long hash = 0;
Form1.Dictionary.TryGetValue(toHash, out hash);
final.FileHash = hash; //FileHash To Check
final.CRC = final.find_CRC(datas); //See find_CRC
final.Flag = compr ? (short)0x1 : (short)0x0; //Flag Compressed data To check
final.DataBlock = datas; //Tocheck
if (final.CRC == 0)
{
MessageBox.Show("Unable to find CRC!");
error = true; //We are going out from cycle
}
return(final);
}
internal static R_MythicPackageIndex Pack(string current_file, ref bool error)
{
/*- Create index for each data (sizeof: 34bytes )
* QWORD 0x34 -> Offset to start of Data Block of this file
* DWORD 0x3c -> Length of Data Block header (usually 0x0C)
* DWORD 0x40 -> Lenght of compressed data
* DWORD 0x44 -> Size of decompressed file
* QWORD 0x48 -> Filehash
* DWORD 0x50 -> Adler32 CRC of Data in littleEndian ( flag offset data )
* WORD 0x54 -> Compressed Flag
*/
R_MythicPackageData datas = new R_MythicPackageData();
R_MythicPackageIndex final = new R_MythicPackageIndex();
datas = R_MythicPackageData.Pack(current_file); //Pack current file datas
string toHash = ""; //Initialized "" to prevent error in hashing
/*error = false; //Actually we does not want to get out of the cycle
//We are looking fo Build folder, that is the root.
int inde = current_file.IndexOf("build\\");
if (inde != -1) //if found
toHash = current_file.Substring(Form1.FolderName.Length+1);
toHash = toHash.Replace("\\", "/");
//toHash = current_file.Substring(inde, current_file.Length - inde);
else
{
MessageBox.Show("NO BUILD FOLDER FOUND!");
error = true;//We are going out from cycle
}*/
toHash = current_file.Substring(Form1.FolderName.Length+1);
toHash = toHash.Replace("\\", "/");
bool compr = datas.Compressed; //Are datas compressed?
final.DataBlockOffset = 0; //Offset to start of Data Block of this file
final.HeadLength = 0x0C; //Is this fixed?
final.CompressedSize = datas.C_size; //Ok
final.DecompressedSize = datas.U_size; //Ok
long hash = 0;
Form1.Dictionary.TryGetValue(toHash, out hash);
final.FileHash = hash; //FileHash To Check
final.CRC = final.find_CRC(datas); //See find_CRC
final.Flag = compr ? (short)0x1 : (short)0x0; //Flag Compressed data To check
final.DataBlock = datas; //Tocheck
if (final.CRC == 0)
{
MessageBox.Show("Unable to find CRC!");
error = true; //We are going out from cycle
}
return final;
}
internal uint find_CRC(R_MythicPackageData data)
{
AdlerChecksum crc = new AdlerChecksum();
byte[] tocheck = new byte[BitConverter.GetBytes(data.Flag).Length + BitConverter.GetBytes(data.DataOffset).Length + data.Data.Length];
BitConverter.GetBytes(data.Flag).CopyTo(tocheck, 0); //tocheck position in array
BitConverter.GetBytes(data.DataOffset).CopyTo(tocheck, BitConverter.GetBytes(data.Flag).Length); //tocheck position in array
data.Data.CopyTo(tocheck, BitConverter.GetBytes(data.Flag).Length + BitConverter.GetBytes(data.DataOffset).Length);
if (crc.MakeForBuff(tocheck))
{
return(crc.ChecksumValue);
}
else
{
return(0); //this will be Error
}
}
internal static R_MythicPackageData Empty()
{
R_MythicPackageData d = new R_MythicPackageData();
d.Flag = 0;
d.Data = BitConverter.GetBytes(0) ;
d.DataOffset = 0;
d.DateTime = 0;
return d;
}
internal uint find_CRC(R_MythicPackageData data)
{
AdlerChecksum crc = new AdlerChecksum();
byte[] tocheck = new byte[ BitConverter.GetBytes(data.Flag).Length + BitConverter.GetBytes(data.DataOffset).Length + data.Data.Length];
BitConverter.GetBytes(data.Flag).CopyTo(tocheck, 0); //tocheck position in array
BitConverter.GetBytes(data.DataOffset).CopyTo(tocheck, BitConverter.GetBytes(data.Flag).Length); //tocheck position in array
data.Data.CopyTo(tocheck, BitConverter.GetBytes(data.Flag).Length + BitConverter.GetBytes(data.DataOffset).Length);
if(crc.MakeForBuff(tocheck))
return crc.ChecksumValue;
else
return 0; //this will be Error
}
internal static R_MythicPackageData Pack(string current_file)
{
/*
* * [4] - Data Block/File (sizeof: 12+Lenght bytes)
* * WORD -> flag compressed ( 0008 )
* * WORD -> offset ( 0003 )
* * QWORD -> FileTime
* * BYTE(Lenght) 0xd88 -> compressed data
* * ...this is repeated until all Files from FileIndexes are processed
*/
FileStream reading = new FileStream(current_file, FileMode.Open);
int usize = (int)reading.Length; //Stream Size
int csize = usize; //Compressed Size REF
byte[] sourceData = new byte[usize]; //Stream to be compressed
byte[] destData = new byte[csize]; //Stream compressed
bool compressed = true; //Must say if datas are TO BE compressed or not.
R_MythicPackageData final = new R_MythicPackageData();
using (BinaryReader reader = new BinaryReader(reading))
{
reader.Read(sourceData, 0, usize);
}
if (sourceData.Length <= 10)//If file length is less than 10 bytes we do not compress it.
{
compressed = false;
}
if (compressed)
{
ZLibError error = Zlib.Zlib.Compress(destData, ref csize, sourceData, usize);
if (error != ZLibError.Okay)
{
throw new Exception(String.Format("Error Compressing: {0}", error));
}
}
else
{
csize = usize;
destData = sourceData;
}
final.Flag = 3; //Is this fixed?
final.DataOffset = 8; //And this?
final.DateTime = System.DateTime.Now.ToFileTime(); //To check
byte[] compressedData = new byte[csize];
for (int i = 0; i < csize; i++)
{
compressedData[i] = destData[i];
}
final.Data = compressedData; //Ok
final.Compressed = compressed; //Ok
final.C_size = csize; //Ok
final.U_size = usize; //Ok
return(final);
}
