public TanReader(IBinaryStream input, TanMetaData info)
{
m_input = input;
m_output = new byte[info.Width * info.Height];
m_info = info;
Format = 8 == m_info.BPP ? PixelFormats.Indexed8 : PixelFormats.Bgr24;
}
public override ArcFile TryOpen(ArcView file)
{
if (!file.Name.HasExtension(".tan"))
{
return(null);
}
int count = file.View.ReadInt16(0);
if (!IsSaneCount(count))
{
return(null);
}
uint index_pos = 2 + (uint)count * 4;
var info = new TanMetaData {
Width = file.View.ReadUInt16(index_pos),
Height = file.View.ReadUInt16(index_pos + 2),
BPP = 8,
DataOffset = index_pos + 4,
};
index_pos += 0x404;
count = file.View.ReadInt16(index_pos);
if (!IsSaneCount(count))
{
return(null);
}
index_pos += 2;
var base_name = Path.GetFileNameWithoutExtension(file.Name);
var base_offset = index_pos + 4 * count;
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new TanEntry {
Name = string.Format("{0}#{1:D2}", base_name, i),
Type = "image",
Offset = base_offset + file.View.ReadUInt32(index_pos),
Index = i,
};
dir.Add(entry);
index_pos += 4;
}
for (int i = 1; i < count; ++i)
{
dir[i - 1].Size = (uint)(dir[i].Offset - dir[i - 1].Offset);
if (!dir[i - 1].CheckPlacement(file.MaxOffset))
{
return(null);
}
}
dir[dir.Count - 1].Size = (uint)(file.MaxOffset - dir[dir.Count - 1].Offset);
return(new TanArchive(file, this, dir, info));
}
public TanArchive(ArcView arc, ArchiveFormat impl, ICollection <Entry> dir, TanMetaData info)
: base(arc, impl, dir)
{
Info = info;
}
public TanFrameDecoder(IBinaryStream input, TanMetaData info, int frame)
: base(input, info)
{
m_frame = frame;
m_reader = new TanReader(m_input, info);
}
