private void ParseHET()
{
Reader.Seek((long)HetTablePos64, SeekOrigin.Begin);
if (Reader.Read <Media.FourCC>() != new Media.FourCC("HET\x1A"))
{
throw new Exception("WTF");
}
if (Reader.ReadUInt32() != 1)
{
throw new Exception("WTF");
}
HetDataSize = Reader.ReadUInt32();
HetTableSize = Reader.ReadUInt32();
HetMaxFileCount = Reader.ReadUInt16();
HetHashTableSize = Reader.ReadUInt16();
HetHashEntrySize = Reader.ReadUInt32();
HetTotalIndexSize = Reader.ReadUInt32();
HetIndexSizeExtra = Reader.ReadUInt32();
HetIndexSize = Reader.ReadUInt32();
HetBlockTableSize = Reader.ReadUInt32();
HetHashTableOffset = Reader.Position;
}
private void ReadData(Ibasa.IO.BinaryReader reader)
{
LowResImage = new SharpIL.Resource(
new Size3i(LowResImageWidth, LowResImageHeight, 1), 1, 1, EncodingFromFormat(LowResImageFormat));
HighResImage = new SharpIL.Resource(
new Size3i(Width, Height, Depth), MipmapCount, Frames * Faces, EncodingFromFormat(ImageFormat));
if (VersionMinor < 3)
{
reader.Read(LowResImage[0, 0], 0, LowResImage[0, 0].Length);
for (int mip = MipmapCount - 1; mip >= 0; --mip)
{
Size3f size = HighResImage.ComputeMipSliceSize(mip);
for (int frame = 0; frame < Frames; ++frame)
{
for (int face = 0; face < Faces; ++face)
{
int array = face + (Faces * frame);
reader.Read(
HighResImage[mip, array], 0,
HighResImage[mip, array].Length);
}
}
}
}
else
{
//low res
int lowResOffset = Resources.Find((resource) => resource.Type == ResourceType.LowResImage).Data;
reader.Seek((uint)lowResOffset, SeekOrigin.Begin);
reader.Read(LowResImage[0, 0], 0, LowResImage[0, 0].Length);
//high res
int highResOffset = Resources.Find((resource) => resource.Type == ResourceType.Image).Data;
reader.Seek((uint)highResOffset, SeekOrigin.Begin);
for (int mip = MipmapCount - 1; mip >= 0; --mip)
{
Size3f size = HighResImage.ComputeMipSliceSize(mip);
for (int frame = 0; frame < Frames; ++frame)
{
for (int face = 0; face < Faces; ++face)
{
byte[] data = HighResImage[mip, face + (Faces * frame)];
reader.Read(data, 0, data.Length);
}
}
}
}
}
private void ReadData(Ibasa.IO.BinaryReader reader)
{
int depth = (HeaderFlags.HasFlag(HeaderFlagsEnum.Depth) ? Depth : 1);
int mipmapCount = (HeaderFlags.HasFlag(HeaderFlagsEnum.MipmapCount) ? MipmapCount : 1);
if (IsDX10Mode)
{
int arraySize = (CubemapFlags.HasFlag(CubemapFlagsEnum.Cubemap) ? 6 : 1) * ArraySize;
Image = new Resource(new Size3i(Width, Height, depth), mipmapCount, arraySize, SelectLoadFormat());
for (int arraySlice = 0; arraySlice < Image.ArraySize; ++arraySlice)
{
for (int mipSlice = 0; mipSlice < Image.MipLevels; ++mipSlice)
{
byte[] subresource = Image[mipSlice, arraySlice];
reader.Read(subresource, 0, subresource.Length);
}
}
}
else if (PixelFlags.HasFlag(PixelFlagsEnum.FourCC))
{
int arraySize = (CubemapFlags.HasFlag(CubemapFlagsEnum.Cubemap) ? 6 : 1);
Image = new Resource(new Size3i(Width, Height, depth), mipmapCount, arraySize, SelectLoadFormat());
for (int arraySlice = 0; arraySlice < Image.ArraySize; ++arraySlice)
{
for (int mipSlice = 0; mipSlice < Image.MipLevels; ++mipSlice)
{
byte[] subresource = Image[mipSlice, arraySlice];
reader.Read(subresource, 0, subresource.Length);
}
}
}
}
private void ReadHeader(Ibasa.IO.BinaryReader reader)
{
Header.ImageId = new byte[reader.ReadByte()];
Header.ColorMapType = reader.ReadByte();
Header.ImageType = reader.ReadByte();
Header.ColourMapOrigin = reader.ReadUInt16();
Header.ColorMapLength = reader.ReadUInt16();
Header.ColorMapDepth = reader.ReadByte();
Header.XOrigin = reader.ReadUInt16();
Header.YOrigin = reader.ReadUInt16();
Header.Width = reader.ReadUInt16();
Header.Height = reader.ReadUInt16();
Header.PixelDepth = reader.ReadByte();
Header.ImageDescriptor = reader.ReadByte();
reader.Read(Header.ImageId, 0, Header.ImageId.Length);
}
public Mpq(Stream stream)
{
Reader = new Ibasa.IO.BinaryReader(stream, Encoding.ASCII);
long offset = 0;
bool founda, foundb;
{
Ibasa.Media.FourCC mpqa = new Media.FourCC("MPQ\x1A");
Ibasa.Media.FourCC mpqb = new Media.FourCC("MPQ\x1B");
//find offset
var fourcc = Reader.Read<Ibasa.Media.FourCC>();
founda = fourcc == mpqa;
foundb = fourcc == mpqb;
while (!founda && !foundb)
{
offset += 512;
fourcc = Reader.Read<Ibasa.Media.FourCC>();
founda = fourcc == mpqa;
foundb = fourcc == mpqb;
}
}
if (foundb)
{
var userdatasize = Reader.ReadUInt32();
offset += Reader.ReadUInt32();
var userdataheader = Reader.ReadUInt32();
}
Reader.Seek(offset, SeekOrigin.Begin);
if (Reader.Read<Media.FourCC>() != new Media.FourCC("MPQ\x1A"))
throw new Exception("WTF");
HeaderSize = Reader.ReadUInt32();
ArchiveSize = Reader.ReadUInt32();
FormatVersion = Reader.ReadUInt16();
BlockSize = Reader.ReadUInt16();
HashTablePos = Reader.ReadUInt32();
BlockTablePos = Reader.ReadUInt32();
HashTableSize = Reader.ReadUInt32();
BlockTableSize = Reader.ReadUInt32();
if (FormatVersion >= 2)
{
HiBlockTablePos64 = Reader.ReadUInt64();
HashTablePosHi = Reader.ReadUInt16();
BlockTablePosHi = Reader.ReadUInt16();
}
if (FormatVersion >= 3)
{
ArchiveSize64 = Reader.ReadUInt64();
BetTablePos64 = Reader.ReadUInt64();
HetTablePos64 = Reader.ReadUInt64();
}
if (FormatVersion >= 4)
{
hashtablesize64 = Reader.ReadUInt64();
blocktablesize64 = Reader.ReadUInt64();
hiblocktablesize64 = Reader.ReadUInt64();
hettablesize64 = Reader.ReadUInt64();
bettablesize64 = Reader.ReadUInt64();
dawchunksize = Reader.ReadUInt32();
md5_blocktable = Reader.ReadBytes(16);
md5_hashtable = Reader.ReadBytes(16);
md5_hiblocktable = Reader.ReadBytes(16);
md5_bettable = Reader.ReadBytes(16);
md5_hettable = Reader.ReadBytes(16);
md5_mpqheader = Reader.ReadBytes(16);
}
if (HetTablePos64 != 0)
{
ParseHET();
}
if (BetTablePos64 != 0)
{
ParseBET();
}
}
public Mpq(Stream stream)
{
Reader = new Ibasa.IO.BinaryReader(stream, Encoding.ASCII);
long offset = 0;
bool founda, foundb;
{
Ibasa.Media.FourCC mpqa = new Media.FourCC("MPQ\x1A");
Ibasa.Media.FourCC mpqb = new Media.FourCC("MPQ\x1B");
//find offset
var fourcc = Reader.Read <Ibasa.Media.FourCC>();
founda = fourcc == mpqa;
foundb = fourcc == mpqb;
while (!founda && !foundb)
{
offset += 512;
fourcc = Reader.Read <Ibasa.Media.FourCC>();
founda = fourcc == mpqa;
foundb = fourcc == mpqb;
}
}
if (foundb)
{
var userdatasize = Reader.ReadUInt32();
offset += Reader.ReadUInt32();
var userdataheader = Reader.ReadUInt32();
}
Reader.Seek(offset, SeekOrigin.Begin);
if (Reader.Read <Media.FourCC>() != new Media.FourCC("MPQ\x1A"))
{
throw new Exception("WTF");
}
HeaderSize = Reader.ReadUInt32();
ArchiveSize = Reader.ReadUInt32();
FormatVersion = Reader.ReadUInt16();
BlockSize = Reader.ReadUInt16();
HashTablePos = Reader.ReadUInt32();
BlockTablePos = Reader.ReadUInt32();
HashTableSize = Reader.ReadUInt32();
BlockTableSize = Reader.ReadUInt32();
if (FormatVersion >= 2)
{
HiBlockTablePos64 = Reader.ReadUInt64();
HashTablePosHi = Reader.ReadUInt16();
BlockTablePosHi = Reader.ReadUInt16();
}
if (FormatVersion >= 3)
{
ArchiveSize64 = Reader.ReadUInt64();
BetTablePos64 = Reader.ReadUInt64();
HetTablePos64 = Reader.ReadUInt64();
}
if (FormatVersion >= 4)
{
hashtablesize64 = Reader.ReadUInt64();
blocktablesize64 = Reader.ReadUInt64();
hiblocktablesize64 = Reader.ReadUInt64();
hettablesize64 = Reader.ReadUInt64();
bettablesize64 = Reader.ReadUInt64();
dawchunksize = Reader.ReadUInt32();
md5_blocktable = Reader.ReadBytes(16);
md5_hashtable = Reader.ReadBytes(16);
md5_hiblocktable = Reader.ReadBytes(16);
md5_bettable = Reader.ReadBytes(16);
md5_hettable = Reader.ReadBytes(16);
md5_mpqheader = Reader.ReadBytes(16);
}
if (HetTablePos64 != 0)
{
ParseHET();
}
if (BetTablePos64 != 0)
{
ParseBET();
}
}
public Gcf(Stream stream)
{
Reader = new Ibasa.IO.BinaryReader(stream, Encoding.ASCII);
{
long seek = Reader.Position;
uint checksum = Reader.ReadBytes(10 * 4).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
if (Reader.ReadUInt32() != 0x00000001) // HeaderVersion Always 0x00000001
{
throw new InvalidDataException("Header version mismatch.");
}
if (Reader.ReadUInt32() != 0x00000001) // MajorVersion Always 0x00000001
{
throw new InvalidDataException("Major version mismatch.");
}
var minor = Reader.ReadInt32();
if (minor != 3 && minor != 5 && minor != 6)
{
throw new InvalidDataException(string.Format("Minor version mismatch, read {0} expected 3, 5 or 6.", minor));
}
GCFVersion = new Version(1, minor);
CacheID = Reader.ReadInt32();
LastVersionPlayed = Reader.ReadInt32();
var dummy0 = Reader.ReadUInt32();
var dummy1 = Reader.ReadUInt32();
FileSize = Reader.ReadUInt32(); // Total size of GCF file in bytes.
SectorSize = Reader.ReadUInt32(); // Size of each data block in bytes.
SectorCount = Reader.ReadUInt32(); // Number of data blocks.
if (checksum != Reader.ReadUInt32())// Header checksum.
throw new InvalidDataException("Checksum mismatch.");
}
{
long seek = Reader.Position;
uint checksum = Reader.Read<uint>(7).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
BlockCount = Reader.ReadUInt32(); // Number of data blocks.
if (BlockCount != SectorCount)
{
throw new InvalidDataException("BlockCount does not match SectorCount.");
}
BlocksUsed = Reader.ReadUInt32(); // Number of data blocks that point to data.
var dummy0 = Reader.ReadUInt32();
var dummy1 = Reader.ReadUInt32();
var dummy2 = Reader.ReadUInt32();
var dummy3 = Reader.ReadUInt32();
var dummy4 = Reader.ReadUInt32();
if (checksum != Reader.ReadUInt32()) // Header checksum.
throw new InvalidDataException("Checksum mismatch.");
}
BlockEntryOffset = Reader.Position;
//Seek past block entries
Reader.Seek(BlockCount * BlockEntry.Size, SeekOrigin.Current);
{ //FragmentationMapHeader
long seek = Reader.Position;
uint checksum = Reader.Read<uint>(3).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
uint sectorCount = Reader.ReadUInt32();
if (SectorCount != sectorCount)
throw new InvalidDataException();
FirstUnusedEntry = Reader.ReadUInt32();
Terminator = Reader.ReadUInt32() == 0 ? 0x0000ffff : 0xffffffff;
if (checksum != Reader.ReadUInt32()) // Header checksum.
throw new InvalidDataException("Checksum mismatch.");
}
FragmentationMapEntryOffset = Reader.BaseStream.Position;
//Seek past block entries
Reader.Seek(BlockCount * 4, SeekOrigin.Current);
{ //BlockMapHeader
if (GCFVersion.Minor <= 5)
{
uint blockCount = Reader.ReadUInt32();
uint firstBlockEntryIndex = Reader.ReadUInt32();
uint lastBlockEntryIndex = Reader.ReadUInt32();
uint dummy0 = Reader.ReadUInt32();
uint checksum = Reader.ReadUInt32();
//struct BlockMapEntry
//{
// public uint PreviousBlockEntryIndex; // The previous block entry. (N/A if == BlockCount.)
// public uint NextBlockEntryIndex; // The next block entry. (N/A if == BlockCount.)
//}
Reader.Seek(blockCount * 8, SeekOrigin.Current);
}
}
{ //DirectoryHeader
if (Reader.ReadUInt32() != 0x00000004) // HeaderVersion Always 0x00000004
throw new InvalidDataException("Header version mismatch.");
if (Reader.ReadUInt32() != CacheID) // CacheID
throw new InvalidDataException("CacheID mismatch.");
if (Reader.ReadUInt32() != LastVersionPlayed) // LastVersionPlayed
throw new InvalidDataException("LastVersionPlayed mismatch.");
ItemCount = Reader.ReadUInt32(); //public uint ItemCount; // Number of items in the directory.
FileCount = Reader.ReadUInt32(); //public uint FileCount; // Number of files in the directory.
var dummy0 = Reader.ReadUInt32();
DirectorySize = Reader.ReadUInt32(); //public uint DirectorySize; // Size of lpGCFDirectoryEntries & lpGCFDirectoryNames & lpGCFDirectoryInfo1Entries & lpGCFDirectoryInfo2Entries & lpGCFDirectoryCopyEntries & lpGCFDirectoryLocalEntries in bytes.
NameSize = Reader.ReadUInt32(); //public uint NameSize; // Size of the directory names in bytes.
HashTableKeyCount = Reader.ReadUInt32(); //public uint HashTableKeyCount; // Number of Info1 entires.
CopyCount = Reader.ReadUInt32(); //public uint CopyCount; // Number of files to copy.
LocalCount = Reader.ReadUInt32(); //public uint LocalCount; // Number of files to keep local.
var dummy1 = Reader.ReadUInt32();
var dummy2 = Reader.ReadUInt32();
var checksum = Reader.ReadUInt32(); // Header checksum never computes
}
DirectoryEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * DirectoryEntry.Size, SeekOrigin.Current);
DirectoryNameOffset = Reader.BaseStream.Position;
Reader.Seek(NameSize, SeekOrigin.Current);
DirectoryInfo1EntryOffset = Reader.BaseStream.Position;
Reader.Seek(HashTableKeyCount * DirectoryInfo1Entry.Size, SeekOrigin.Current);
DirectoryInfo2EntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * DirectoryInfo2Entry.Size, SeekOrigin.Current);
DirectoryCopyEntryOffset = Reader.BaseStream.Position;
Reader.Seek(CopyCount * DirectoryCopyEntry.Size, SeekOrigin.Current);
DirectoryLocalEntryOffset = Reader.BaseStream.Position;
Reader.Seek(LocalCount * DirectoryLocalEntry.Size, SeekOrigin.Current);
{ //DirectoryMapHeader
//public uint Dummy0;
//public uint Dummy1;
Reader.Seek(8, SeekOrigin.Current);
}
DirectoryMapEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * 4, SeekOrigin.Current);
{ //ChecksumHeader ChecksumMapHeader
if (Reader.ReadUInt32() != 0x00000001) // HeaderVersion Always 0x00000001
throw new InvalidDataException();
ChecksumSize = Reader.ReadUInt32(); // Size of LPGCFCHECKSUMHEADER & LPGCFCHECKSUMMAPHEADER & in bytes.
if (Reader.ReadUInt32() != 0x14893721) // FormatCode Always 0x14893721
throw new InvalidDataException();
if (Reader.ReadUInt32() != 0x00000001) // Dummy0 Always 0x00000001
throw new InvalidDataException();
ChecksumItemCount = Reader.ReadUInt32(); // Number of file ID entries.
ChecksumCount = Reader.ReadUInt32(); // Number of checksums.
}
ChecksumMapEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ChecksumItemCount * ChecksumMapEntry.Size, SeekOrigin.Current);
ChecksumEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ChecksumCount * 4, SeekOrigin.Current);
//Skip past signature
Reader.Seek(0x80, SeekOrigin.Current);
if (Reader.ReadUInt32() != LastVersionPlayed) // LastVersionPlayed
throw new InvalidDataException("LastVersionPlayed mismatch.");
{ //DataHeader
uint checksum = 0;
uint sectorCount, sectorSize;
checksum += (sectorCount = Reader.ReadUInt32()); // Number of data blocks.
if (SectorCount != sectorCount)
throw new InvalidDataException();
checksum += (sectorSize = Reader.ReadUInt32()); // Size of each data block in bytes.
if (SectorSize != sectorSize)
throw new InvalidDataException();
checksum += (FirstSectorOffset = Reader.ReadUInt32()); // Offset to first data block.
checksum += (SectorsUsed = Reader.ReadUInt32()); // Number of data blocks that contain data.
if (checksum != Reader.ReadUInt32()) //public uint Checksum; // Header checksum.
throw new InvalidDataException();
}
for (uint index = 0; index < ItemCount; ++index)
{
DirectoryEntry entry = GetDirectoryEntry(index);
if (entry.ParentIndex == 0xFFFFFFFF)
{
RootDirectory = new GcfDirectoryInfo(this, index);
break;
}
}
}
int GetDataBlock(uint blockIndex, uint blockOffset, byte[] buffer, int index, int count)
{
Reader.Seek(FirstSectorOffset + blockIndex * SectorSize + blockOffset, SeekOrigin.Begin);
return(Reader.Read(buffer, index, Math.Min(count, (int)(SectorSize - blockOffset))));
}
public Gcf(Stream stream)
{
Reader = new Ibasa.IO.BinaryReader(stream, Encoding.ASCII);
{
long seek = Reader.Position;
uint checksum = Reader.ReadBytes(10 * 4).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
if (Reader.ReadUInt32() != 0x00000001) // HeaderVersion Always 0x00000001
{
throw new InvalidDataException("Header version mismatch.");
}
if (Reader.ReadUInt32() != 0x00000001) // MajorVersion Always 0x00000001
{
throw new InvalidDataException("Major version mismatch.");
}
var minor = Reader.ReadInt32();
if (minor != 3 && minor != 5 && minor != 6)
{
throw new InvalidDataException(string.Format("Minor version mismatch, read {0} expected 3, 5 or 6.", minor));
}
GCFVersion = new Version(1, minor);
CacheID = Reader.ReadInt32();
LastVersionPlayed = Reader.ReadInt32();
var dummy0 = Reader.ReadUInt32();
var dummy1 = Reader.ReadUInt32();
FileSize = Reader.ReadUInt32(); // Total size of GCF file in bytes.
SectorSize = Reader.ReadUInt32(); // Size of each data block in bytes.
SectorCount = Reader.ReadUInt32(); // Number of data blocks.
if (checksum != Reader.ReadUInt32()) // Header checksum.
{
throw new InvalidDataException("Checksum mismatch.");
}
}
{
long seek = Reader.Position;
uint checksum = Reader.Read <uint>(7).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
BlockCount = Reader.ReadUInt32(); // Number of data blocks.
if (BlockCount != SectorCount)
{
throw new InvalidDataException("BlockCount does not match SectorCount.");
}
BlocksUsed = Reader.ReadUInt32(); // Number of data blocks that point to data.
var dummy0 = Reader.ReadUInt32();
var dummy1 = Reader.ReadUInt32();
var dummy2 = Reader.ReadUInt32();
var dummy3 = Reader.ReadUInt32();
var dummy4 = Reader.ReadUInt32();
if (checksum != Reader.ReadUInt32()) // Header checksum.
{
throw new InvalidDataException("Checksum mismatch.");
}
}
BlockEntryOffset = Reader.Position;
//Seek past block entries
Reader.Seek(BlockCount * BlockEntry.Size, SeekOrigin.Current);
{ //FragmentationMapHeader
long seek = Reader.Position;
uint checksum = Reader.Read <uint>(3).Aggregate(0U, (sum, value) => sum + value);
Reader.Position = seek;
uint sectorCount = Reader.ReadUInt32();
if (SectorCount != sectorCount)
{
throw new InvalidDataException();
}
FirstUnusedEntry = Reader.ReadUInt32();
Terminator = Reader.ReadUInt32() == 0 ? 0x0000ffff : 0xffffffff;
if (checksum != Reader.ReadUInt32()) // Header checksum.
{
throw new InvalidDataException("Checksum mismatch.");
}
}
FragmentationMapEntryOffset = Reader.BaseStream.Position;
//Seek past block entries
Reader.Seek(BlockCount * 4, SeekOrigin.Current);
{ //BlockMapHeader
if (GCFVersion.Minor <= 5)
{
uint blockCount = Reader.ReadUInt32();
uint firstBlockEntryIndex = Reader.ReadUInt32();
uint lastBlockEntryIndex = Reader.ReadUInt32();
uint dummy0 = Reader.ReadUInt32();
uint checksum = Reader.ReadUInt32();
//struct BlockMapEntry
//{
// public uint PreviousBlockEntryIndex; // The previous block entry. (N/A if == BlockCount.)
// public uint NextBlockEntryIndex; // The next block entry. (N/A if == BlockCount.)
//}
Reader.Seek(blockCount * 8, SeekOrigin.Current);
}
}
{ //DirectoryHeader
if (Reader.ReadUInt32() != 0x00000004) // HeaderVersion Always 0x00000004
{
throw new InvalidDataException("Header version mismatch.");
}
if (Reader.ReadUInt32() != CacheID) // CacheID
{
throw new InvalidDataException("CacheID mismatch.");
}
if (Reader.ReadUInt32() != LastVersionPlayed) // LastVersionPlayed
{
throw new InvalidDataException("LastVersionPlayed mismatch.");
}
ItemCount = Reader.ReadUInt32(); //public uint ItemCount; // Number of items in the directory.
FileCount = Reader.ReadUInt32(); //public uint FileCount; // Number of files in the directory.
var dummy0 = Reader.ReadUInt32();
DirectorySize = Reader.ReadUInt32(); //public uint DirectorySize; // Size of lpGCFDirectoryEntries & lpGCFDirectoryNames & lpGCFDirectoryInfo1Entries & lpGCFDirectoryInfo2Entries & lpGCFDirectoryCopyEntries & lpGCFDirectoryLocalEntries in bytes.
NameSize = Reader.ReadUInt32(); //public uint NameSize; // Size of the directory names in bytes.
HashTableKeyCount = Reader.ReadUInt32(); //public uint HashTableKeyCount; // Number of Info1 entires.
CopyCount = Reader.ReadUInt32(); //public uint CopyCount; // Number of files to copy.
LocalCount = Reader.ReadUInt32(); //public uint LocalCount; // Number of files to keep local.
var dummy1 = Reader.ReadUInt32();
var dummy2 = Reader.ReadUInt32();
var checksum = Reader.ReadUInt32(); // Header checksum never computes
}
DirectoryEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * DirectoryEntry.Size, SeekOrigin.Current);
DirectoryNameOffset = Reader.BaseStream.Position;
Reader.Seek(NameSize, SeekOrigin.Current);
DirectoryInfo1EntryOffset = Reader.BaseStream.Position;
Reader.Seek(HashTableKeyCount * DirectoryInfo1Entry.Size, SeekOrigin.Current);
DirectoryInfo2EntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * DirectoryInfo2Entry.Size, SeekOrigin.Current);
DirectoryCopyEntryOffset = Reader.BaseStream.Position;
Reader.Seek(CopyCount * DirectoryCopyEntry.Size, SeekOrigin.Current);
DirectoryLocalEntryOffset = Reader.BaseStream.Position;
Reader.Seek(LocalCount * DirectoryLocalEntry.Size, SeekOrigin.Current);
{ //DirectoryMapHeader
//public uint Dummy0;
//public uint Dummy1;
Reader.Seek(8, SeekOrigin.Current);
}
DirectoryMapEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ItemCount * 4, SeekOrigin.Current);
{ //ChecksumHeader ChecksumMapHeader
if (Reader.ReadUInt32() != 0x00000001) // HeaderVersion Always 0x00000001
{
throw new InvalidDataException();
}
ChecksumSize = Reader.ReadUInt32(); // Size of LPGCFCHECKSUMHEADER & LPGCFCHECKSUMMAPHEADER & in bytes.
if (Reader.ReadUInt32() != 0x14893721) // FormatCode Always 0x14893721
{
throw new InvalidDataException();
}
if (Reader.ReadUInt32() != 0x00000001) // Dummy0 Always 0x00000001
{
throw new InvalidDataException();
}
ChecksumItemCount = Reader.ReadUInt32(); // Number of file ID entries.
ChecksumCount = Reader.ReadUInt32(); // Number of checksums.
}
ChecksumMapEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ChecksumItemCount * ChecksumMapEntry.Size, SeekOrigin.Current);
ChecksumEntryOffset = Reader.BaseStream.Position;
Reader.Seek(ChecksumCount * 4, SeekOrigin.Current);
//Skip past signature
Reader.Seek(0x80, SeekOrigin.Current);
if (Reader.ReadUInt32() != LastVersionPlayed) // LastVersionPlayed
{
throw new InvalidDataException("LastVersionPlayed mismatch.");
}
{ //DataHeader
uint checksum = 0;
uint sectorCount, sectorSize;
checksum += (sectorCount = Reader.ReadUInt32()); // Number of data blocks.
if (SectorCount != sectorCount)
{
throw new InvalidDataException();
}
checksum += (sectorSize = Reader.ReadUInt32()); // Size of each data block in bytes.
if (SectorSize != sectorSize)
{
throw new InvalidDataException();
}
checksum += (FirstSectorOffset = Reader.ReadUInt32()); // Offset to first data block.
checksum += (SectorsUsed = Reader.ReadUInt32()); // Number of data blocks that contain data.
if (checksum != Reader.ReadUInt32()) //public uint Checksum; // Header checksum.
{
throw new InvalidDataException();
}
}
for (uint index = 0; index < ItemCount; ++index)
{
DirectoryEntry entry = GetDirectoryEntry(index);
if (entry.ParentIndex == 0xFFFFFFFF)
{
RootDirectory = new GcfDirectoryInfo(this, index);
break;
}
}
}