1045865 - AlphaBoxBlur needs NEON implementation

Status: RESOLVED DUPLICATE of bug 753010

(Core :: Graphics, defect)

Description

[Benoit Girard (:BenWa)]

We have a SSE2 & C implementation of AlphaBoxBlur but we don't have a NEON implementation. AlphaBoxBlur is used heavy by the b2g homescreen and takes over 25% of our rendering time:

http://people.mozilla.org/~bgirard/cleopatra/#report=46f55482af4f58a113e3a4c81ffe24f69fc911f2

Comment 1

[Matt Woodrow (:mattwoodrow)]

Bug 942023 might be an easier (and possibly more effective) way to fix this.

Comment 2

[Markus Stange [:mstange]]

Attachment: wip

I started on this a few months ago while I was almost asleep at an airport. Here's what I ended up with. I can't recall whether it even builds. But it's probably better than starting from scratch.

Even if we won't be using this for box-shadow, it'll still benefit the SVG/CSS blur filter.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Attachment: Here's my WIP

I also looked at doing this last night. Mine certainly doesn't build yet.

Comment 4

[Markus Stange [:mstange]]

Because two implementations isn't enough, we now have a third implementation in bug 753010. But that one has been tested!