Hi, I have been going through the WOFF2 specifications, and there a lot of optional fields in various tables.
For example, the header size is fixed (48 bytes), but the table directory (https://www.w3.org/TR/WOFF2/#table_dir_format) has 2 optional fields, `tag' and `transformLength'. In addition, the data type 255UInt16 can be one to three bytes and UIntBase128 can be *upto* 5 bytes long. My question is, how can reading these variable-length streams be handled with `FT_FRAME_ENTER' and supporting macros? `FT_FRAME_ENTER' requires a fixed frame size, which I believe is always the number of bytes the cursor traverses by the time `FT_FRAME_EXIT' is called (please correct me if I am wrong about this). This would mean that if I take the frame size to be the sum of the upper bounds of the sizes of all possible fields, I will be overshooting in most cases. Is there a correct solution to this that I'm missing? Thanks! -- Nikhil _______________________________________________ Freetype-devel mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/freetype-devel
