private FwPacket ProcessNextFwPacket(BinaryReaderEndian packetReader)
{
FwPacket packet = new FwPacket();
try
{
// Seek to next packet start
while (true)
{
if (packetReader.ReadByte() == 0x00)
{
byte tableId = packetReader.ReadByte();
if (tableId == 0xB5 || tableId == 0xB6)
{
packetReader.BaseStream.Seek(-2, SeekOrigin.Current);
break;
}
else
{
packetReader.BaseStream.Seek(-1, SeekOrigin.Current);
}
}
}
long startPos = packetReader.BaseStream.Position;
// Skip over table id
packetReader.ReadInt16();
packet.Length = (ushort)(packetReader.ReadUInt16() & 0x0FFF);
packet.SectionType = packetReader.ReadUInt16();
packet.Unknown = packetReader.ReadUInt32();
packet.VendorId = packetReader.ReadByte();
packetReader.ReadByte();
packet.ModelId = packetReader.ReadByte();
packetReader.BaseStream.Seek(3, SeekOrigin.Current);
packet.FirmwareVersion = packetReader.ReadByte();
packet.FileOffset = packetReader.ReadUInt32();
packet.FileLength = packetReader.ReadUInt32();
packet.Data = packetReader.ReadBytes(packet.Length - 25);
packet.Crc32 = packetReader.ReadUInt32();
packetReader.BaseStream.Seek(startPos + 1, SeekOrigin.Begin);
byte[] wholePacket = packetReader.ReadBytes(packet.Length + 3);
packet.hasPassedCRC = (Crc32.crc32_mpeg(wholePacket, (uint)wholePacket.Length) == 0);
}
catch (EndOfStreamException ex)
{
throw ex;
}
catch (Exception)
{
packet.hasPassedCRC = false;
}
return(packet);
}
private void Read(StreamPart streamFile)
{
streamFile.Stream.Position = streamFile.Position;
using (BinaryReader reader = new BinaryReaderEndian(streamFile.Stream, Encoding.ASCII, true))
{
Header = new DDSAtlusHeader(reader);
int temp = 0;
temp += ReadTexture(reader);
if (temp != Header.SizeTexture)
{
throw new Exception("DDSAtlus: wrong texture size");
}
LastBlock = reader.ReadBytes(Header.SizeWOHeader - Header.SizeTexture);
}
}
private FwPacket ProcessNextFwPacket(BinaryReaderEndian packetReader)
{
FwPacket packet = new FwPacket();
try
{
// Seek to next packet start
while (true)
{
if (packetReader.ReadByte() == 0x00)
{
byte tableId = packetReader.ReadByte();
if (tableId == 0xB5 || tableId == 0xB6)
{
packetReader.BaseStream.Seek(-2, SeekOrigin.Current);
break;
}
else
{
packetReader.BaseStream.Seek(-1, SeekOrigin.Current);
}
}
}
long startPos = packetReader.BaseStream.Position;
// Skip over table id
packetReader.ReadInt16();
packet.Length = (ushort)(packetReader.ReadUInt16() & 0x0FFF);
packet.SectionType = packetReader.ReadUInt16();
packet.Unknown = packetReader.ReadUInt32();
packet.VendorId = packetReader.ReadByte();
packetReader.ReadByte();
packet.ModelId = packetReader.ReadByte();
packetReader.BaseStream.Seek(3, SeekOrigin.Current);
packet.FirmwareVersion = packetReader.ReadByte();
packet.FileOffset = packetReader.ReadUInt32();
packet.FileLength = packetReader.ReadUInt32();
packet.Data = packetReader.ReadBytes(packet.Length - 25);
packet.Crc32 = packetReader.ReadUInt32();
packetReader.BaseStream.Seek(startPos + 1, SeekOrigin.Begin);
byte[] wholePacket = packetReader.ReadBytes(packet.Length + 3);
packet.hasPassedCRC = (Crc32.crc32_mpeg(wholePacket, (uint)wholePacket.Length) == 0);
}
catch (EndOfStreamException ex)
{
throw ex;
}
catch (Exception)
{
packet.hasPassedCRC = false;
}
return packet;
}