[comp.graphics] QPDM ellipse drawing

hans@force2 (Hans Klimmer) (02/14/91)

Hi,

I am currently doing a X11 port to a graphics board with a
QPDM (Am95C60) controller. My problem is, that there is no
way to draw an ellipse with the built in CIRCLE command and
scaling enabled (at least I was not able to get this running).
Is there a trick that I can use, or do I really have to
compute the ellipse and draw it dot by dot?

If there is anybody out there who has solved this, please let
me know.

I would be very glad if people who are doing portings to QPDM
(or compareable Processors without frame buffer access) send
mail to me in order to discuss problems and solutions.


Hans Klimmer (hans@force2.de)