So I've implemented a line drawing algorithm, and even understand how
to draw anti-aliased lines

But I haven't seen anything about drawing lines of varying width.

I suspect that simply drawing several single pixel wide lines adjacent
to each other will leave unmarked pixels interior to the overall line
in many cases with the default bresenham line algorithm.

I suspect that the "correct" method is to draw a filled polygon (or
filled rectangle).

But I'm hoping there's an easier answer.

Any pointers or clues?

This is going on an ARM processor with an LCD controller, but no
graphics accelerator.  It is running Linux, and I've looked at a
variety of graphics libraries, but the majority appear to target X
(which I'm not running), and the others don't appear to do what I need
or are poorly supported to the point where implementing my own
primitives appears to be speedier than trying to get their code
working on this embedded platform.  This is going straight to a frame
buffer, but I've already got the pixel routines (including alpha
blending).

Ultimately I want to be able to draw semi-transparent open polygons
(non filled) with borders that are more than one pixel wide.

Any ideas or suggested appreciated.  I'll probably have to implement
this next week (hey, I'm planning ahead - who'd'a thunk it?)

Of course, as usual the project is growing in complexity the further I
pursue it, so any suggestions on simple windowing libraries with
framebuffer/alpha/PNG/font support would be appreciated as well.  As
would suggestions for mailing lists and forums where such information
can more eaily be found.

-Adam

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