Re: [AD] clipping line algorithm

[Robert Jr Ohannessian <rohannessian@xxxxxxxxxx>]

Hi,

Sorry for the late reply - had no email access for a little while.

[snip]
> > But an add-on may provide a bitmap type that is not planar (so it would not
> > be correct to set the flag) but does not support _putpixel (so it would not
> > be correct for is_linear_bitmap() to return true).
>
>
> Yes, I think this could be the case for AllegroGL.
>
> Bob, does the screen bitmap of AllegroGL support linear access within each 
> scanline? If no, do you set BMP_ID_PLANAR for it?

It used to, at some point. I don't think this mode of operation was 
really supported. In any case, using _putpixel in the context of hw 
acceleration is really not a good idea. Do we have a vtable entry for 
line()? If not, we should consider adding it, as it would easily solve 
the AllegroGL problem.

I'd like to move away from having everything defined as a funtion of 
_putpixel, if possible.



--
- Robert Jr Ohannessian
http://bob.allegronetwork.com/