//extract a whole file into memory
public byte[] ExtractRes2Mem(int index)
{
byte[] retval = null;
StResourceDscp dscp = GetResourceDscp(index);
mFs.Position = getResourceDataBegpos(index);
retval = mBr.ReadBytes((int)dscp.len);
return(retval);
}
public StResourceDscp GetResourceDscp(int index)
{
StResourceDscp retval = new StResourceDscp();
mFs.Position = GetIndexBeg(index);
retval.beg = ReadLong();
retval.len = ReadLong();
retval.type = ReadLong();
return(retval);
}
//extract file to hard disk (currently not in use)
public void ExtractRes(String destFolder, int rangeStart, int count)
{
String path = destFolder;
if (rangeStart >= 0 && count > 0 && count <= mResCount)
{
int rangeEnd = rangeStart + count;
StResourceDscp resDscp = null;
byte[] buffer = new byte[BUFFERLEN];
for (int i = rangeStart; i < rangeEnd; i++)
{
resDscp = GetResourceDscp(i);
FileStream fso =
new FileStream(path + i.ToString() + GetExtendName(resDscp),
FileMode.Create, FileAccess.Write);
mFs.Position = getResourceDataBegpos(i);
if (resDscp.len < BUFFERLEN)
{
mBr.Read(buffer, (int)resDscp.beg, (int)resDscp.len);
fso.Write(buffer, 0, (int)resDscp.len);
}
else
{
int time = (int)(resDscp.len / BUFFERLEN + 1);
int lastLen = (int)(resDscp.len % BUFFERLEN);
int red = 0;
for (int j = 0; j < time; j++)
{
if (j != time - 1)
{
red = mBr.Read(buffer, 0, BUFFERLEN);
fso.Write(buffer, 0, BUFFERLEN);
}
else
{
red = mBr.Read(buffer, 0, lastLen);
fso.Write(buffer, 0, lastLen);
}
}
}
fso.Close();
}
}
}
public static String GetExtendName(StResourceDscp resDscp)
{
String ret = "";
if (resDscp.type == 0)
{
ret = ".jpg";
}
else if (resDscp.type == 1)
{
ret = ".png";
}
return(ret);
}