[cairo] Lander Game

Simon Burton simon at arrowtheory.com
Mon Jan 8 14:19:41 PST 2007

On Mon, 8 Jan 2007 13:19:45 -0800
"Daniel Amelang" <daniel.amelang at gmail.com> wrote:

> On 1/8/07, Alex Mac <lots.of.mailing.lists at gmail.com> wrote:
> > I'm guessing that rsvg does no caching and simply re-parses the svg
> > file every time? that would explain why its so slow.
> >
> > I saw something like this mentioned in another thread but I'll mention
> > it again here. It would be really useful if cairo had something like
> > OpenGL's display lists so that sequences of commands can be recorded
> > and then later replayed to a surface.
> You don't necessarily need display lists in this case to get that
> behavior. You can cache all that complex drawing in an intermediate
> cairo surface that you keep around to paint onto your destination
> surface as needed. That way, you only need to use rsvg to render the
> SVG once. If/when you need to draw the SVG at a different resolution,
> you'll probably want to re-render it for that resolution.

Is this a generic technique ? 

I'm using cairo from python.
Although I haven't hit performance problems yet, I know I will,
and i've also been wondering about some kind of display list thing
for cairo.

hmm, sounds like an FAQ.


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