Description of the file formats TBC and MBC
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Note: Using little-endian byte order for data fields.

Main Header (TBC):
Offset    Size    Description
0x0000    4       Signature ('TBC ')
0x0004    4       Version (currently supported: 'V1.0')
0x0008    4       Encoding type (see below)
0x000c    4       Tile count
0x0010    var     Compressed Tile(s)

Main Header (MBC):
Offset    Size    Description
0x0000    4       Signature ('MBC ')
0x0004    4       Version (currently supported: 'V1.0')
0x0008    4       Encoding type (see below)
0x000c    4       Width
0x0010    4       Height
0x0014    var     Compressed Tile(s)

Compressed Tile:
Offset    Size    Description
0x0000    4       Size of data block
0x0004    var     data block (content depends on encoding type)

Encoded Tile:
Offset    Size    Description
0x0000    2       Tile width
0x0002    2       Tile height
0x0004    var     encoded pixel data
Note: Only used for fixed-rate data encoding types.


Encoding types supported by format version V1.0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixed-rate data encoding types:
0x0000    no pixel encoding (unmodified palette and pixel data as contiguous block)
0x0001    BC1 (DXT1) pixel encoding
0x0002    BC2 (DXT3) pixel encoding
0x0003    BC3 (DXT5) pixel encoding
Encoding type bit 8:
- clear: Adding zlib compressed Encoded Tile to Compressed Tile structure
- set:   Adding uncompressed Encoded Tile to Compressed Tile structure