- From: Ian Hickson <ian@hixie.ch>
- Date: Wed, 9 Jan 2013 19:59:34 +0000 (UTC)
- To: Stephen White <senorblanco@chromium.org>
- Cc: WHAT Working Group <whatwg@whatwg.org>
On Wed, 9 Jan 2013, Stephen White wrote: > > > > Right now by 2d canvases are effectively single buffered. At the > > appropriate time a copy of the canvas is made and passed to the > > compositor. This copy is slow, especially on mobile. > > Currently, to lower the VRAM footprint and improve performance, we don't > do a copy in 2d canvas. We temporarily transfer ownership of the > texture to the compositor at commit time, and block the renderer until > the composite is complete. That may change, however. Good to know, thanks. Should this change, or should there be a desire for a mode where it looks like after the commit the buffer is cleared, please do let me know. Would still love input from any other vendors, too. -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 9 January 2013 20:00:15 UTC