public static bool PatchIMG(string FHD_name)
{
string directoryName = Path.GetDirectoryName(FHD_name);//获取FHD文件目录
string patchFolderName = String.Format("{0}\\Patch", directoryName);
if (!File.Exists(patchFolderName))
//如果Patch文件夹不存在，创建Patch文件夹
{
Directory.CreateDirectory(String.Format("{0}\\Patch", directoryName));
}
FatalFrame.FHD2INI(FHD_name);//从当前选择的FHD文件导出ini表
List <FHDInfo> list = new List <FHDInfo>();
GetIndexInfo(String.Format("{0}\\zero.ini", directoryName), list);//获取struct 列表
fileInfo m_fileInfo;
FileStream fStream = new FileStream(FHD_name, FileMode.Open, FileAccess.ReadWrite);//打开FHD文件流
BinaryReader fp = new BinaryReader(fStream);
BinaryWriter fhd_writer = new BinaryWriter(fStream);
fp.BaseStream.Seek(0, SeekOrigin.Begin);
fhd_writer.BaseStream.Seek(0, SeekOrigin.Begin);
string IMG_NAME = String.Format("{0}\\IMG_BD.bin", directoryName);//打开IMG_BD文件流
FileStream IMG_Stream = new FileStream(IMG_NAME, FileMode.Open, FileAccess.ReadWrite);
BinaryWriter img = new BinaryWriter(IMG_Stream);
uint sig = fp.ReadUInt32();
if (sig != 0x46484400)
{
Base.WriteLogging(String.Format("Error: Not a FHD file:{0}", FHD_name));
MessageBox.Show("Error: Not a FHD file");
fp.Close();
fStream.Close();
return(false);
}
else
{
fp.BaseStream.Seek(8, SeekOrigin.Begin);
m_fileInfo.baseName = FHD_name;
m_fileInfo.baseSize = fp.ReadInt32();
m_fileInfo.baseNums = fp.ReadInt32();
m_fileInfo.BLOCK0_OFFSET = fp.ReadInt32(); // Decompressed BLOCK
m_fileInfo.BLOCK1_OFFSET = fp.ReadInt32(); // TYPE BLOCK
m_fileInfo.BLOCK2_OFFSET = fp.ReadInt32(); // SIZE BLOCK
m_fileInfo.BLOCK3_OFFSET = fp.ReadInt32(); // NAME BLOCK
m_fileInfo.BLOCK4_OFFSET = fp.ReadInt32(); // LBA BLOCK
fp.BaseStream.Seek(m_fileInfo.BLOCK0_OFFSET, SeekOrigin.Begin); // goto Block 0
Base.WriteLogging(String.Format("{0} files need to patch", list.Count));
for (int i = 0; i < list.Count; i++)
{
FHDInfo m_FHDInfo = list[i];
//根据当前ID获取FHD的指针地址
long LBA_POS = m_fileInfo.BLOCK4_OFFSET + m_FHDInfo.FHD_ID * 4;
long SIZE_POS = m_fileInfo.BLOCK2_OFFSET + m_FHDInfo.FHD_ID * 4;
long NAME_POS = m_fileInfo.BLOCK3_OFFSET + m_FHDInfo.FHD_ID * 8;
long DEC_POS = m_fileInfo.BLOCK0_OFFSET + m_FHDInfo.FHD_ID * 4;
string pfName = String.Format("{0}\\Patch\\{1}{2}", directoryName,
m_FHDInfo.FolderName.Replace("..", ""),
m_FHDInfo.FileName);
FileStream pfStream = new FileStream(pfName, FileMode.Open, FileAccess.ReadWrite);//打开patch file文件流
BinaryReader pfReader = new BinaryReader(pfStream);
pfReader.BaseStream.Seek(0, SeekOrigin.Begin);
if (m_FHDInfo.LBA_OFFSET == -1)//文件追加到IMG_BD末尾
{
img.BaseStream.Seek(0, SeekOrigin.End);
long currentPosition = img.BaseStream.Position;
long tmp_offset = Convert.ToUInt32(currentPosition);
m_FHDInfo.LBA_OFFSET = tmp_offset;
Base.WriteLogging(String.Format("Writing {0} to the end of img --->{1}", pfName, m_FHDInfo.LBA_OFFSET));
byte[] data = pfReader.ReadBytes(Convert.ToInt32(pfStream.Length));
img.Write(data);
if (Convert.ToInt32(pfStream.Length) % 0x800 != 0)
{
img.Write(Base.FillByteArray(0x800 - Convert.ToInt32(pfStream.Length) % 0x800));
}
img.Flush();
}
else
{
long tmp_offset = m_FHDInfo.LBA_OFFSET;
img.BaseStream.Seek(tmp_offset, SeekOrigin.Begin);
byte[] data = pfReader.ReadBytes(Convert.ToInt32(pfStream.Length));
img.Write(data);
img.Flush();
}
fStream.Position = LBA_POS;
fStream.Write(System.BitConverter.GetBytes(m_FHDInfo.LBA_OFFSET / 0x800), 0, 4);
fStream.Position = SIZE_POS;
fStream.Write(System.BitConverter.GetBytes(m_FHDInfo.CompressedSize << 1), 0, 4);
fStream.Position = DEC_POS;
fStream.Write(System.BitConverter.GetBytes(m_FHDInfo.DecompressedSize), 0, 4);
pfReader.Close();
pfStream.Close();
}
fp.Close();
fStream.Close();
IMG_Stream.Close();
img.Close();
return(true);
}
}