XRender

Pekka Paalanen ppaalanen at gmail.com
Fri Sep 21 03:38:50 PDT 2012


On Fri, 21 Sep 2012 12:21:47 +0200
JS <js314592 at gmail.com> wrote:

> On Fri, Sep 21, 2012 at 10:36 AM, Jørgen Lind <jorgen.lind at gmail.com> wrote:
> > You can rasterize a glyph with freetype, then you can depending on the
> > surface you want to draw into either upload your glyph into some
> > texture glyph cache and then "blit" the texture into some gl surface,
> > or if your working on a main memory surface, you can use some "raster
> > painter" abstraction and blend the rasterized glyph into that surface.
> > I suppose pixman has such an abstraction, and QPaintEngine also has
> > such an abstraction.

> Does it provide same performance as XRender?

At least it does not require any protocol encoding/decoding or process
context switches, so it has potential to be at least as fast.


Thanks,
pq


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