[cairo] Text performance on windows?

Nicholas Allen allen at ableton.com
Tue Aug 26 02:40:51 PDT 2008

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I also experience serious performance problems with Cairo. I have only
run on Windows but it's performance is so bad as to make it completely
unusable for what we need. It's a shame because the API is really
clean and the output looks great. Hopefully, this will get fixed in
future releases...


Damian Frank wrote:
> I'm pretty new to Cairo, and I've been looking at using it for a
> codebase that currently uses, variously, Xlib, GDI, GDI+, and
> Quartz, among others.  Performance is one of my chief concerns,
> though.  At the moment I'm looking at text performance, and I have
> some serious concerns.  For now, I am just benchmarking on Windows,
>  and only for to-screen rendering (as opposed to printing or
> PS/PDF/etc).
> Can someone give me some pointers on staying on the fast code paths
>  for text rendering on win32?  My tests so far show image and DDB
> both taking about 15-20x as long as our GDI implementation, and
> 24-bit DIB taking about 5x as long.
> Thanks,
> Damian
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