On Thu, May 1, 2008 at 4:18 AM, Vincent Torri <[EMAIL PROTECTED]> wrote:
>
> > As you can see from CVS log, I did some repacking of Evas_Object and
> > managed to save more than 80 bytes, almost 1/3 of it is gone.
> >
> > While some aggressive packing went in, like "layer" number being a
> > short now, I'm a bit unsure if applying the attached patch is a good
> > thing. It will save 4 bytes from cur,prev, so it's 8 bytes in the end,
> > but the solution is a bit ugly, as the members
> > cache.clip.{visible,dirty} now are cache_clip_{visible,dirty} so it
> > can be packed with the other bitfields. On one hand it saves memory,
> > on the other it's ugly as hell :-P
> >
> > Apply or not? that's the question...
> >
> > PS: please test Evas on as many
> > machines/architectures/compilers/operating systems as possible to see
> > nothing is broken by these patches! It relies on compilers working
> > fine with bitfields.
>
> I'll try on windows with mingw. Indeed, i've forgotten to add
> -mms-bitfields in the compilation flags in the efl, which is needed if
> other programs use evas and are compiled with ms vc++ if i'm not mistaken.
> See:
>
> http://gcc.gnu.org/ml/gcc-patches/2002-04/msg00253.html
>
> There is a description of that flag
hum, I doubt that will matter because all the structs are internal to
evas, so just evas object code, which was compiled with mingw, so use
the correct instructions, will access these bitfields.
> Vincent
>
> PS: unit tests...
no time for them now, after recompiles I ran pahole and analyse, then
expedite and then e... for the first time I made enums a bitfield I
wrote a small application outside evas that did that and it worked.
--
Gustavo Sverzut Barbieri
http://profusion.mobi
Embedded Systems
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