public CriAfs2Archive(FileStream fs, long offset)
{
ushort previousCueId = ushort.MaxValue;
if (IsCriAfs2Archive(fs, offset))
{
this.SourceFile = fs.Name;
long afs2FileSize = fs.Length;
this.MagicBytes = ParseFile.ParseSimpleOffset(fs, offset, SIGNATURE.Length);
this.Version = ParseFile.ParseSimpleOffset(fs, offset + 4, 4);
this.FileCount = ParseFile.ReadUintLE(fs, offset + 8);
// setup offset field size
int offsetFieldSize = this.Version[1]; // known values: 2 and 4. 4 is most common. I've only seen 2 in 'se_enemy_gurdon_galaga_bee.acb' from Sonic Lost World.
uint offsetMask = 0;
for (int j = 0; j < offsetFieldSize; j++)
{
offsetMask |= (uint)((byte)0xFF << (j * 8));
}
if (this.FileCount > ushort.MaxValue)
{
throw new FormatException(String.Format("ERROR, file count exceeds max value for ushort. Please report this at official feedback forums (see 'Other' menu item).", fs.Name));
}
this.ByteAlignment = ParseFile.ReadUintLE(fs, offset + 0xC);
this.Files = new Dictionary <ushort, CriAfs2File>((int)this.FileCount);
CriAfs2File dummy;
for (ushort i = 0; i < this.FileCount; i++)
{
dummy = new CriAfs2File();
dummy.CueId = ParseFile.ReadUshortLE(fs, offset + (0x10 + (2 * i)));
dummy.FileOffsetRaw = ParseFile.ReadUintLE(fs, offset + (0x10 + (this.FileCount * 2) + (offsetFieldSize * i)));
// mask off unneeded info
dummy.FileOffsetRaw &= offsetMask;
// add offset
dummy.FileOffsetRaw += offset; // for AFS2 files inside of other files (ACB, etc.)
// set file offset to byte alignment
if ((dummy.FileOffsetRaw % this.ByteAlignment) != 0)
{
dummy.FileOffsetByteAligned = MathUtil.RoundUpToByteAlignment(dummy.FileOffsetRaw, this.ByteAlignment);
}
else
{
dummy.FileOffsetByteAligned = dummy.FileOffsetRaw;
}
//---------------
// set file size
//---------------
// last file will use final offset entry
if (i == this.FileCount - 1)
{
dummy.FileLength = (ParseFile.ReadUintLE(fs, offset + (0x10 + (this.FileCount * 2) + ((offsetFieldSize) * i)) + offsetFieldSize) + offset) - dummy.FileOffsetByteAligned;
}
// else set length for previous cue id
if (previousCueId != ushort.MaxValue)
{
this.Files[previousCueId].FileLength = dummy.FileOffsetRaw - this.Files[previousCueId].FileOffsetByteAligned;
}
this.Files.Add(dummy.CueId, dummy);
previousCueId = dummy.CueId;
} // for (uint i = 0; i < this.FileCount; i++)
}
else
{
throw new FormatException(String.Format("AFS2 magic bytes not found at offset: 0x{0}.", offset.ToString("X8")));
}
}
public CriCpkDirectory GetDirectoryForItoc(FileStream fs, CriUtfTable cpkUtf, string BaseDirectoryName, long volumeBaseOffset)
{
ulong currentOffset = 0;
CriUtfTocFileInfo fileInfo = new CriUtfTocFileInfo();
CriAfs2File afs2File = new CriAfs2File();
// get content offset and align
ulong contentOffset = (ulong)CriUtfTable.GetUtfFieldForRow(cpkUtf, 0, "ContentOffset");
ushort align = (ushort)CriUtfTable.GetUtfFieldForRow(cpkUtf, 0, "Align");
// build direcory path
CriCpkDirectory baseDirectory = new CriCpkDirectory(this.SourceFileName, BaseDirectoryName, String.Empty);
CriCpkFile tempFile;
// read file groups
uint filesH = 0;
uint filesL = 0;
object filesHObj = CriUtfTable.GetUtfFieldForRow(this.ItocUtf, 0, "FilesH"); //count of files in DataH
object filesLObj = CriUtfTable.GetUtfFieldForRow(this.ItocUtf, 0, "FilesL"); // count of files in DataL
if (filesHObj != null)
{
filesH = (uint)filesHObj;
}
if (filesHObj != null)
{
filesL = (uint)filesLObj;
}
if ((filesH > 0) || (filesL > 0))
{
Dictionary <string, CriUtfTocFileInfo> fileList = new Dictionary <string, CriUtfTocFileInfo>();
if (filesH > 0)
{
// read DataH group
CriUtfTable dataH = new CriUtfTable();
dataH.Initialize(fs, (long)CriUtfTable.GetOffsetForUtfFieldForRow(this.ItocUtf, 0, "DataH"));
for (int i = 0; i < dataH.Rows.GetLength(0); i++)
{
fileInfo = GetUtfItocFileInfo(dataH, i);
fileList.Add(fileInfo.FileName, fileInfo);
}
}
if (filesL > 0)
{
// read DataL group
CriUtfTable dataL = new CriUtfTable();
dataL.Initialize(fs, (long)CriUtfTable.GetOffsetForUtfFieldForRow(this.ItocUtf, 0, "DataL"));
for (int i = 0; i < dataL.Rows.GetLength(0); i++)
{
fileInfo = GetUtfItocFileInfo(dataL, i);
fileList.Add(fileInfo.FileName, fileInfo);
}
}
// initialize current offset
currentOffset = contentOffset;
// populate offsets for files
var keys = fileList.Keys.ToList();
keys.Sort();
foreach (string key in keys)
{
// afs2 file for ACB extraction
afs2File = new CriAfs2File();
afs2File.CueId = Convert.ToUInt16(fileList[key].FileName); // ??? @TODO maybe key is enough? need to check.
afs2File.FileOffsetRaw = volumeBaseOffset + (long)currentOffset;
// align offset
if (currentOffset % align != 0)
{
currentOffset = MathUtil.RoundUpToByteAlignment(currentOffset, align);
}
// update file info
fileList[key].FileOffset = (ulong)volumeBaseOffset + currentOffset;
fileList[key].FileName += ".bin";
// afs2 file for ACB extraction
afs2File.FileOffsetByteAligned = (long)fileList[key].FileOffset;
afs2File.FileLength = fileList[key].FileSize;
// increment current offset
currentOffset += fileList[key].FileSize;
// create file and add to base directory
tempFile = new CriCpkFile(BaseDirectoryName, this.SourceFileName, fileList[key].FileName,
(long)fileList[key].FileOffset, this.VolumeBaseOffset, (long)fileList[key].FileOffset,
fileList[key].FileSize, fileList[key].ExtractSize);
baseDirectory.FileArray.Add(tempFile);
// add afs2 file to ItocFiles for ACB extraction
this.ItocFiles.Add(afs2File.CueId, afs2File);
} // foreach (string key in keys)
} // if ((filesH > 0) || (filesL > 0))
return(baseDirectory);
}
