[Mono-dev] libgdiplus drawing performance

Stifu stifu at free.fr
Wed May 6 14:36:53 EDT 2009

Bugs / inconsistencies are more of a concern than speed (the same goes for
In my own project, speed isn't so bad. It's maybe twice slower at most in
some cases, which is still smooth for my stuff.

Jeff Solomon wrote:
> Hi,
> Is it well known that the libgdiplus implementation that mono wrote for
> unix systems is much slower than the real gdiplus Windows library?
> This is what I'm finding.
> I read another post that said that libgdiplus goes as cairo and that's
> fine, but is libgdiplus drawing performance not important in MONO?
> In my trivial of drawing 10,000 random lines, rects, circles, and filled
> circles, Windows GDI+ is 3x to 8x faster in almost all the tests. I keep
> thinking I must be doing something wrong, because the test is so simple,
> but that's what I find. I'm actually run the exactly same code on both
> platforms to compare results. I'm writing to an image buffer.
> Attached are the test files. Perhaps I'm doing something really silly?
> Jeff
>  http://www.nabble.com/file/p19423752/gditest.tar.bz2 gditest.tar.bz2 

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