[cairo] cairo-1.13 finally opens

[Chris Wilson]

On Thu, Sep 05, 2013 at 03:54:43PM +0000, Henry (Yu) Song - SISA wrote:
> Hi, Chris
> 
> I have added Guassian blur and shadow support in cairo.  It is available in filters-wip branch from https://github.com/SRA-SiliconValley/cairogles
> 
> The gaussian blur and shadow support are available for GL/GLES, image, xcb and quartz backend.

Eek, shadow is definitely a big missing <canvas> feature. I had
an API sketched around an effects API for cairo-2.0. As you can see to
do shadows requires a lot of entry points on the context, which one of
ours goal is to keep to a minimum. I wonder if I can quickly sketch a
slightly more generic API of which the first (and only, for the time
being) consume is a shadow effect. (i.e. something closer to the
cairo_set_pattern, cairo_pattern_create_linear e.g.
cairo_set_<path?>_effect, cairo_effect_create_shadow).

Give me a couple of days... And suggestions welcome! But consider these
two penciled in for this dev cycle.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre