702992 - Flash elements lag while panning

Status: RESOLVED DUPLICATE of bug 727116

(Firefox for Android Graveyard :: General, defect, P2)

Description

[Tony Chung [:tchung]]

Attachment: flash ad screenshot

For sites that have flash ads embedded, panning around a site tends to lag the flash ads with the panning.  

test sites: www.techcrunch.com, www.businessinsider.com

Repro:
1) install nightly birch, SGS2: Mozilla/5.0 (Android; Linux armv7l; rv:10.0a1)
Gecko/20111116 Firefox/10.0a1 Fennec/10.0a1
2) have flash installed from market
3) visit pages with flash ads (see URL)
4) when page is done loading, identify the flash ads, and then pan around the page.  Verify the ad is slightly laggy, and tries to snap back into place with panning

Expected:
- panning page with flash ads should feel fluid

Actual:
- flash ads keep up with panning

Comment 1

[Brad Lassey [:blassey] (use needinfo?)]

this is a side effect of the android NPAPI, the stock browser has similar behavior. Not sure how much we can do to make this better

Comment 2

[James Willcox (:snorp) ([e-mail]) (he/him)]

The only thing I can think of to improve this is to snapshot the plugin while zooming/panning and hide the real plugin window. We then stick the snapshot in an OpenGL texture where we can manipulate it with the rest of the content. Once you stop panning/zooming we restore the plugin window. The major downside to this is that the flash content freezes during the panning/zooming operation. I personally think this is a good compromise, though.

It should also be noted that in HC and ICS this won't be an issue (though that is only based on my rough understanding).

Comment 4

[Brad Lassey [:blassey] (use needinfo?)]

snorp, is there another bug for the snapshot feature to dupe this to?