< number of bpp to unpack/pack to/from 1 byte. When reading converts n packed bits to 1 byte (unpack). If n>1 will also expand to 0-255. When writing converts 1 byte to 1 bit (pack). If negative will only expand to 0-255 (no unpack or pack).
See Implementation
< number of bpp to unpack/pack to/from 1 byte. When reading converts n packed bits to 1 byte (unpack). If n>1 will also expand to 0-255. When writing converts 1 byte to 1 bit (pack). If negative will only expand to 0-255 (no unpack or pack).