On Tue, Feb 1, 2011 at 10:04 AM, Anne van Kesteren <ann...@opera.com> wrote: > On Tue, 01 Feb 2011 18:36:19 +0100, Boris Zbarsky <bzbar...@mit.edu> wrote: >> >> On 2/1/11 5:19 AM, Simon Pieters wrote: >>> >>> While you're discussing efficient handoff of ArrayBuffer, do you also >>> keep in mind efficient handoff of other objects (e.g. ImageData) as >>> discussed in this thread?: >>> >>> http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2011-January/029885.html >> >> For what it's worth, in Gecko that's the same thing, since imagedata is >> just a typed array in our implementation. > > ImageData.data you mean? I wonder if we can still remove CanvasPixelArray.
Only if the out-of-bounds behavior for entries in Typed Arrays matches the current clamping behavior for CanvasPixelArray. I don't see any explicit indication of what should be done in the Typed Array spec, which I suppose means that they're relying on WebIDL's coercion algos to keep things in-range for the given view. WebIDL has the wrong behavior here right now (it wraps), though I think heycan is receptive to changing it. ~TJ