public VPXFile(string filename)
{
_cf = new CompoundFile(filename, CFSUpdateMode.ReadOnly, CFSConfiguration.Default);
CFStorage gameStg = _cf.RootStorage.GetStorage("GameStg");
UInt32 version = new VPXReader(gameStg.GetStream("Version")).ReadUInt32();
void visitor(CFItem item)
{
if (item.Name.StartsWith("Image") && item is CFStream stream)
{
ReadImage(stream, true);
}
}
gameStg.VisitEntries(visitor, true);
}
private byte[] ReadImage(CFStream stream, bool nameOnly)
{
var reader = new VPXReader(stream);
var inJpg = false;
int size = 0;
var done = false;
byte[] data = null;
var entry = new Entry();
entry._stream = stream;
while (!done)
{
var bytesInRecordRemaining = reader.ReadUInt32();
var tag = reader.ReadString(Encoding.ASCII, 4);
switch (tag)
{
case "ENDB":
if (inJpg)
{
inJpg = false;
}
else
{
done = true;
}
break;
case "NAME":
entry._name = reader.ReadLenPrefixedString(Encoding.ASCII);
_images[entry._name] = entry;
break;
case "PATH":
entry._file = reader.ReadLenPrefixedString(Encoding.ASCII);
break;
case "INME":
reader.ReadLenPrefixedString(Encoding.ASCII);
break;
case "WDTH":
reader.ReadUInt32();
break;
case "HGHT":
reader.ReadUInt32();
break;
case "SIZE":
size = reader.ReadInt32();
break;
case "ALTV":
reader.Skip(4); // skip the float
break;
case "JPEG":
inJpg = true;
break;
case "DATA":
if (nameOnly)
{
done = true;
}
else
{
data = reader.Read(size);
if (data[0] == 0x89 && data[1] == 0x50 && data[2] == 0x4E && data[3] == 0x47 && data[4] == 0x0D && data[5] == 0x0A && data[6] == 0x1A && data[7] == 0x0A)
{
// PNG
}
else if (data[0] == 0xFF && data[1] == 0xD8)
{
// JPG
}
else if (data[0] == 0x23 && data[1] == 0x3F && data[2] == 0x52 && data[3] == 0x41 && data[4] == 0x44 && data[5] == 0x49 && data[6] == 0x41 && data[7] == 0x4E && data[8] == 0x43 && data[9] == 0x45 && data[10] == 0x0A)
{
// HDR (unsupported)
data = null;
}
else
{
data = null;
}
}
break;
}
}
return(data);
}
