[Sugar-devel] SVG performance

[Jonas Smedegaard]

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On Mon, Dec 08, 2008 at 08:12:17PM -0500, Bernie Innocenti wrote:
>Sascha Silbe wrote:
>> On Mon, Dec 08, 2008 at 07:51:54AM -0500, Walter Bender wrote:
>> 
>>> I think the solution may be as simple as going back to GIF files.
>> Please don't. Using vector graphics helps scaling Sugar to non-XO 
>> devices.
>
>We had a quick look today, and it seems Gdk.PixBuf.new_from_file():
>
>http://library.gnome.org/devel/gdk-pixbuf/stable/gdk-pixbuf-file-loading.html#gdk-pixbuf-new-from-file
>
>
>With some instrumentation, it was apparent that it takes a long time
>to render some SVG files.  One in particular took half a second on a
>laptop with a fast processor!  A visual inspection of the problem
>files reveals they mostly contain just a <path> with a few dozen
>points in it.
>
>It seems GDK supports SVG through a loader plugin.  Can we put the
>blame on librsvg for this slowness?  Are there alternative SVG
>renderers we could try?

There's wxSVG, using libagg: http://www.wxsvg.org/

It has Python bindings, it seems.


  - Jonas

- -- 
* Jonas Smedegaard - idealist og Internet-arkitekt
* Tlf.: +45 40843136  Website: http://dr.jones.dk/

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