Hi,
On Tue, Apr 30, 2013 at 8:57 AM, Carsten Haitzler <ras...@rasterman.com>wrote:
> On Tue, 30 Apr 2013 18:03:21 +0800 hYde <hyde....@gmail.com> said:
>
> > Since my BIOS has only about 8MB of space, I take Evas + Edje.
>
> you'll need ecore, eet and eina too then. (well some of ecore).
that's why I explicitly removed Edje. Edje pulls too much, and will not
aggregate that much value for the BIOS case (show menu and similar). Of
course it would be nice to have a complete environment with Elementary and
all, but I don't think it's doable without LOTS of effort, so stick with
Evas first -- particularly pre-Eina Evas.
> > May I ask what is pre-merge?
>
> efl 1.7.x ... from efl 1.8 we have a single build tree and we have upped
> our
> dependencies. 1.8 is not out yet.. but release is scheduled for end of may.
Yes, but I'd strongly encourage to find out the Evas version before Eina
was introduced. Then you don't need Eina, just Evas types that were built
in (saves a lib to care and some Kb in the final image).
With Evas all you need is to create an engine similar to "FB", give Evas
the framebuffer (pixels) to paint and that's it. If you can configure your
FB, then it should be pretty simple to get it running. You can copy
Expedite's model, that is basically a loop:
while (1) {
event = get_event();
if (event) process_event(event);
evas_render_updates(evas);
}
from process_event() you can arrange your objects as you wish (create,
move, resize...), evas_render_updates() will take care to draw them to
output. Eventually you'd have to ask the FB to update itself, depends on
your setup.
If you need to strip the libraries, I'd recommend to remove the following
chunks from Evas:
- Gradients: it was removed in current Evas, but the pre-Eina still
contained it with lots of useless code;
- Textblock: if you don't need text markup or multi-line text, you can
remove this and lots of code.
And of course choose the minimum set of engines and options, I'm not sure
the bootloader can use MMX/SSE, then you can compile out those with
./configure flags.
NOTE: which hardware are you using this? It seems like a nice hobby project
I'd help on weekends, but I'd need to have a way to test :-)
--
Gustavo Sverzut Barbieri
http://profusion.mobi embedded systems
--------------------------------------
MSN: barbi...@gmail.com
Skype: gsbarbieri
Mobile: +55 (19) 9225-2202
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