OpenGL higher level 2D drawing commands?

Are there any API's out there that provide higher-level 2D drawing commands
for fast, real-time rendering? I see lots of APIs such as Cairo and others
that are mainly targeted at 'document-based' application development or
GUI-type drawing.

What I'm looking for though is a API suitable for fast 2D rendering and
drawing of numerous shapes additional to the lower-level OpenGL primitives.
Things such as complex Arcs, lines with shaped end-points, and various
polygons with a variety of fill types such as flood-fill, gradient (multiple
directions etc).

Also able to draw lines in a variety of stippled patterns. I tried the line
stipple in OpenGL but did not like the 'crawling-ants' effect you get when
you rotate a shape drawn with stippled lines (any way to avoid this)?

Basically I'm trying to utilise OpenGL to render aircraft avionics type
visuals within Flight Simulator 2004, and maybe Flight Simulator FSX as soon
as my FSX beta has finished downloading :)

Anyone have any suggestions?

Thanks

- Seef


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