Hi Tasos,
as far as I know there is no 'written' documentation.
I would advise two things:
(1) have a look at a relatively simple graphics driver to get an idea of
the basic architecture. The simplest one is the ep9x driver.
(2) have a look at src/core/gfxcard.h, which contains the big,
commented, structure of the directfb graphics device functions; these
are the callbacks that you may, or may not, need to implement for your
driver.
Normally, DirectFB will call SetState as a result of colour changes
etcetera, but as a first shot simplification, you can simply query and
set these state variables directly in your card on each blit/draw call;
this saves you some housekeeping (but will cost you performance).
hth
Niels
Tasos Parisinos wrote:
Hi devels
Where can i find the most up to date and thorough documentation on how
to write gfxdrivers and what are the semantics of the various items in
the gfxdriver?
Thanx
Tasos Parisinos
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