[PATCH 1/2] stkutil: convert img to xpm

[Marcel Holtmann]

Hi Kristen,

> >> Also, XPM is pretty flexible here, there's no need to use 0-9 digits
> >> only.  For instance, you can do two look up tables, one for images with
> >> LUTs up to 64 entries and another for LUTs with more.  E.g.
> >>
> >> A-Za-z0-9@$ and 'aa ab ac .. pp' or something like that.
> > 
> > I realize this - this was an implementation choice to keep the code
> > less complex, thinking that it would be better to favor that vs.
> > saving some bytes on the xpm.
> 
> The wording on my part was poor.  Of course you knew this.  My intent
> was to encourage the optimization of the xpm format.  Remember these
> images are up to 64k in size, so a difference between transferring /
> using up 128k and 192k respectively is quite significant.  The added
> (minor) code complexity is definitely worth it.

we need such optimization in this case. We are already accepting a
penalty hit by having to transfer the images over D-Bus. So every single
byte we can save here is a win.

Regards

Marcel