[BRLTTY] Working with braille characters in console mode?

Mario Lang mlang at delysid.org
Sun Jan 20 16:58:08 EST 2008


Samuel Thibault <samuel.thibault at ens-lyon.org> writes:

> Samuel Thibault, le Sat 19 Jan 2008 21:13:46 +0000, a écrit :
>> > have brltty map them correctly to the associated dot combination?
>> 
>> Unfortunately the screen driver model still does't take unicode into
>> account and thus brltty will still show question marks for now.
>
> Maybe we could extend it temporarily without having to revamp everything
> right now by just adding a SCR_DOTS request that returns dots, if any?
> For 0x28uv, the screen driver would return ' ' for SCR_TEXT and 0xuv for
> SCR_DOTS, which the main loop of brltty.c could mix just before the call
> to writeWindow.

Could you elaborate a litte bit on this?  As far as I see,
the vcsa device only uses a 16 bit value for each character on the
screen to mix attribute and character values.  How does an application
actually see the character at a certain position is unicode 0x2800?
Or did I miss something here?
-- 
CYa,
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