public static DDTEntry GetEntry(DDTEntry parent, BinaryReader reader)
{
int nameOffset = reader.ReadInt32();
uint dataOffset = reader.ReadUInt32();
int numData = reader.ReadInt32();
long posNextEntry = reader.GetPosition();
DDTEntry entry;
if (numData < 0)
{
int numChildren = ~numData + 1;
entry = new DDTDirectoryEntry(reader, parent, nameOffset, dataOffset, numChildren);
}
else
{
entry = new DDTFileEntry(reader, parent, nameOffset, dataOffset, numData);
}
reader.Seek(posNextEntry, SeekOrigin.Begin);
return entry;
}
private void InternalRead(BinaryReader reader)
{
long posStart = reader.GetPosition();
byte length = reader.ReadByte();
byte extLength = reader.ReadByte();
_LBA = reader.ReadInt32();
reader.Seek(0x04, SeekOrigin.Current); // LBA_BE
_size = reader.ReadInt32();
reader.Seek(0x04 + 0x07, SeekOrigin.Current); // size_BE + datetime
_flags = reader.ReadByte();
reader.Seek(0x06, SeekOrigin.Current); // unit size + interleave gap + volume seq number
byte nameLength = reader.ReadByte();
byte[] nameBytes = reader.ReadBytes(nameLength);
if (nameBytes.Length == 1)
{
if (nameBytes[0] == 0)
_name = ".";
else if (nameBytes[0] == 1)
_name = "..";
}
else
{
_name = Encoding.ASCII.GetString(nameBytes).Split(';')[0];
}
bool isDirectory = (_flags & (int)RecordFlags.DirectoryRecord) == (int)RecordFlags.DirectoryRecord;
bool isNotParentOrGrandparentDirectory = nameLength != 1 || _parent == null;
if (isDirectory && isNotParentOrGrandparentDirectory)
{
reader.Seek(CVMFile.CVM_HEADER_SIZE + ((long)_LBA * CVMFile.ISO_BLOCKSIZE), SeekOrigin.Begin);
_subEntries = new List<ISODirectoryRecord>();
// Set the initial sector start position
long posSubEntriesSectorStart = reader.BaseStream.Position;
long posSubEntriesDataEnd = posSubEntriesSectorStart + _size;
while (reader.BaseStream.Position < posSubEntriesDataEnd)
{
ISODirectoryRecord record = new ISODirectoryRecord(reader, this);
_subEntries.Add(record);
// Skip padding
byte test = reader.ReadByte();
while (test == 0 && reader.BaseStream.Position < posSubEntriesDataEnd)
{
test = reader.ReadByte();
}
// Break out of the loop if we've read to or past the end position
if (reader.BaseStream.Position >= posSubEntriesDataEnd)
{
break;
}
// We've found a non-zero byte, seek back
reader.BaseStream.Position -= 1;
}
}
reader.Seek(posStart + length + extLength, SeekOrigin.Begin);
}
// Private Methods
private void InternalRead(BinaryReader reader)
{
Stream stream = reader.BaseStream;
int posFileStart = (int)reader.GetPosition();
SPR4Header header = stream.ReadStructure<SPR4Header>();
stream.Seek(posFileStart + header.texturePointerTableOffset, SeekOrigin.Begin);
TypePointerTable[] texturePointerTable = stream.ReadStructures<TypePointerTable>(header.numTextures);
stream.Seek(posFileStart + header.keyFramePointerTableOffset, SeekOrigin.Begin);
TypePointerTable[] keyFramePointerTable = stream.ReadStructures<TypePointerTable>(header.numKeyFrames);
_textures = new List<TGAFile>(header.numTextures);
for (int i = 0; i < header.numTextures; i++)
{
stream.Seek(posFileStart + texturePointerTable[i].offset, SeekOrigin.Begin);
_textures.Add(new TGAFile(stream, true));
}
_keyFrames = new List<SPRKeyFrame>(header.numKeyFrames);
for (int i = 0; i < header.numKeyFrames; i++)
{
stream.Seek(posFileStart + keyFramePointerTable[i].offset, SeekOrigin.Begin);
_keyFrames.Add(new SPRKeyFrame(reader));
}
}
private void InternalRead(BinaryReader reader)
{
long posFileStart = reader.GetPosition();
short flag = reader.ReadInt16();
short userID = reader.ReadInt16();
int length = reader.ReadInt32();
string tag = reader.ReadCString(4);
reader.AlignPosition(16);
if (tag != TAG)
{
throw new InvalidDataException();
}
PaletteCount = reader.ReadByte();
PaletteFormat = (PS2PixelFormat)reader.ReadByte();
Width = reader.ReadUInt16();
Height = reader.ReadUInt16();
PixelFormat = (PS2PixelFormat)reader.ReadByte();
MipMapCount = reader.ReadByte();
_mipKL = reader.ReadUInt16();
byte reserved = reader.ReadByte();
_wrapModes = reader.ReadByte();
UserTextureID = reader.ReadInt32();
UserClutID = reader.ReadInt32();
UserComment = reader.ReadCString(28);
// Check if there's any palettes and read them
if (UsesPalette)
{
ReadPalette(reader);
}
// Read the pixels for the image and mipmaps
ReadPixels(reader);
}
private void InternalRead(BinaryReader reader)
{
long posFileStart = reader.GetPosition();
short flag = reader.ReadInt16();
short userID = reader.ReadInt16();
int length = reader.ReadInt32();
string tag = reader.ReadCString(4);
int unused = reader.ReadInt32();
if (tag != TAG)
{
throw new InvalidDataException("Identifier mismatch.");
}
int numTypeTableEntries = reader.ReadInt32();
int numUnknown = reader.ReadInt32();
reader.AlignPosition(16);
TypeTableEntry[] typeTable = new TypeTableEntry[numTypeTableEntries];
for (int i = 0; i < numTypeTableEntries; i++)
{
typeTable[i] = new TypeTableEntry(reader);
}
System.Diagnostics.Debug.Assert(typeTable[(int)TypeTableType.Strings].elementCount == 0xF0);
for (int i = 0; i < numTypeTableEntries; i++)
{
reader.Seek(posFileStart + typeTable[i].dataOffset, SeekOrigin.Begin);
switch ((TypeTableType)typeTable[i].type)
{
case TypeTableType.Procedures:
ReadCodeLabels(reader, ref _procedures, typeTable[i].elementCount, out _requireSortProcedures);
break;
case TypeTableType.JumpLabels:
ReadCodeLabels(reader, ref _jumpLabels, typeTable[i].elementCount, out _requireSortJumps);
break;
case TypeTableType.Opcodes:
{
bool hasExtendedOpcodes;
_opcodes = BFDisassembler.ParseCodeblock(reader.ReadUInt32Array(typeTable[i].elementCount), out hasExtendedOpcodes);
if (hasExtendedOpcodes) // only fix up the opcode indices if they have to be
FixupOpcodeIndices(); // this function is kinda 2*O(n^2)
}
break;
case TypeTableType.Messages:
if (typeTable[i].elementCount > 0)
_messageFile = new BMDFile(StreamHelper.ReadStream(reader, typeTable[i].elementCount), false);
break;
case TypeTableType.Strings:
// TODO: Implement this
break;
}
}
}
private void InternalRead(BinaryReader reader)
{
long posFileStart = reader.GetPosition();
short flag = reader.ReadInt16();
short userID = reader.ReadInt16();
int length = reader.ReadInt32();
string tag = reader.ReadCString(4);
reader.AlignPosition(16);
if (tag != TAG)
{
throw new InvalidDataException();
}
int addressRelocTableOffset = reader.ReadInt32();
int addressRelocTableSize = reader.ReadInt32();
int numMessages = reader.ReadInt32();
short isRelocated = reader.ReadInt16(); // actually a byte but not very important
short unk0x1E = reader.ReadInt16();
/*
if (unk0x1C != UNK_CONSTANT)
{
Console.WriteLine("_unk0x1C isn't 0x20000");
}
*/
BMDMessageTable[] messagePointerTable = new BMDMessageTable[numMessages];
for (int i = 0; i < messagePointerTable.Length; i++)
{
messagePointerTable[i].Type = (BMDMessageType)reader.ReadInt32();
messagePointerTable[i].Offset = reader.ReadInt32();
}
int actorNamePointerTableOffset = reader.ReadInt32();
int numActors = reader.ReadInt32();
reader.BaseStream.Seek(posFileStart + DATA_START_ADDRESS + actorNamePointerTableOffset, SeekOrigin.Begin);
int[] actorNamePointerTable = reader.ReadInt32Array(numActors);
_actorNames = new string[numActors];
for (int i = 0; i < _actorNames.Length; i++)
{
reader.BaseStream.Seek(posFileStart + DATA_START_ADDRESS + actorNamePointerTable[i], SeekOrigin.Begin);
_actorNames[i] = reader.ReadCString();
}
_messages = new BMDMessage[numMessages];
for (int i = 0; i < _messages.Length; i++)
{
_messages[i] = BMDMessageFactory.GetMessage(reader, (int)posFileStart, messagePointerTable[i]);
}
}
