Westwood BitFont Format
There are two variants of this font type; one used in Red Alert 2, and one in Nox. The Red Alert 2 ones are present in the game, but were only ever used in their internal map editor, with the font used in the final game being the Unicode BitFont. The Nox one has a slightly different header, but is otherwise identical.
Though the width and height are saved as 32-bit integers in the header, they are limited by the fact symbol widths in the image data are saved in a single byte, and by the fact the SymbolDataSize, being
1 + (Stride * FontHeight), must also fit in a 32-bit integer.
Red Alert 2
The Red Alert 2 font format starts with the following header. Apparently the game only sees this font type's header as 0x24 bytes long, and the additional 0x0C bytes behind it are considered an extra part.
|0x00||Char||Format||Literal string "FoNt".|
|0x04||UINT32LE||FontWidth||Overall font symbols maximum width, in pixels. Note that this value is not actually needed or used, since the stride is available.|
|0x08||UINT32LE||Stride||Stride of all font image data.|
|0x0C||UINT32LE||FontHeight||Overall font symbols maximum height, in pixels.|
|0x10||UINT32LE||Lines?||Always equals FontHeight. Might be the amount of lines in the font symbol data, to complement the Stride.|
|0x14||UINT32LE||Dword10||Always 0x01. Apparently related to how much extra data is read behind the normal 0x24 byte header.|
|0x18||UINT32LE||SymbolDataSize||Size of one symbol data block. Should always match |
|0x1C||UINT32LE||Dword1C||Always 0x24. This may refer to the start of the extra data block behind the normal 0x24 header which contains the start and end of the symbols range.|
|0x20||UINT32LE||Dword20||Always 0x30. Could refer to end of the added header part.|
|0x28||UINT32LE||StartSymbol||First stored symbol.|
|0x2C||UINT32LE||EndSymbol||Last stored symbol.|
The Nox font format starts with the following header. It contains a bit less data than the RA2 version, with the start and end symbol stored in 16 bit rather than 32 bit, and without the explicitly saved number of lines. It is unknown whether this is a cleanup of the RA2 type, or if the RA2 type is expanded as precursor to its upgrade to the Unicode BitFont.
|0x00||Char||Format||Literal string "tNoF"; same as the RA2 one, but backwards.|
|0x0x08||UINT32LE||FontWidth||Overall font symbols maximum width, in pixels. Note that this value is not actually needed or used, since the stride is available.|
|0x0x0C||UINT32LE||Stride||Stride of all font image data.|
|0x0x10||UINT32LE||FontHeight||Overall font symbols maximum height, in pixels.|
|0x0x18||UINT32LE||SymbolDataSize||Size of one symbol data block. Should always match |
|0x0x20||UINT16LE||StartSymbol||First stored symbol.|
|0x0x22||UINT16LE||EndSymbol||Last stored symbol.|
The actual font data is identical in both the RA2 and Nox formats, and is very simply straightforward 1 bit per pixel, using the stride and height indicated in the header. The data is prefixed by a byte that gives the symbol width.
Since all symbol image blocks are the same size, the block of data for a specific symbol inside the range given in the header can be found simply by going to the address
HeaderSize + SymbolDataSize * (index - StartSymbol).
|0x00||UINT8||SymbolWidth||Width of this symbol. This does not change the stride of the following data, but only limits the final image width to show.|
|0x01||BYTE[Stride*FontHeight]||SymbolData||1-bpp image block with the stride and height given in the header.|
The font does not contain any padding between symbols. Padding was apparently applied automatically by the program using it, and, judging from the Unicode version of the format, seems to be intended as one pixel between the symbols.
Technically, data could be hidden in the SymbolData, in the portion of the full stride that is cut off by the local width value.
The following tools are able to work with files in this format.
|Name||Platform||View images in this format?||Convert/export to another file/format?||Import from another file/format?||Access hidden data?||Edit metadata?||Notes|
|Westwood Font Editor||Windows||Yes||Yes||Yes||No||N/A|