[cairo] [PATCH] Support image filtering in xlib and xcb backends
spitzak at gmail.com
Thu Aug 14 18:29:07 PDT 2014
On 08/14/2014 04:30 PM, Bryce Harrington wrote:
> On Tue, Aug 12, 2014 at 08:06:35PM -0700, Bill Spitzak wrote:
>> - I did not test the xcb changes.
Is there any easy way to get cairo to render into an xcb backend?
>> - I am assuming other backends treat bilinear and good identically,
>> at least for scales larger than 1/1.35.
A search seems to indicate that all other backends just look for whether
it is FAST/NEAREST or not. So they do not care about bilinear verses good.
I suspect some backends, in particular the drm ones, are not doing the
filtering, and need a similar fallback. I am not clear however. Lots of
other backends I think are doing "good" filtering even if bilinear is
selected, this is probably ok.
>> - A CAIRO_RENDER option maybe should be added in case pixman ever
>> supports GOOD/BEST.
It is probably best to add the config option or flag now. I think pixman
will support this some day, though there certainly was resistance to my
first attempt to send a patch for it.
> Should the above notes be taken care of before this is merged?
I will try to add the flags indicating if the filters work and send
More information about the cairo