[webkit-dev] ArrayBuffer supprot
jianli at chromium.org
Sun Nov 14 18:49:33 PST 2010
Kenneth, if you have not started working on adding DataView support, I can
take this to make it work. How do you think? Thanks.
On Wed, Oct 13, 2010 at 8:37 AM, Jian Li <jianli at chromium.org> wrote:
> On Tue, Oct 12, 2010 at 2:17 PM, Kenneth Russell <kbr at google.com> wrote:
>> On Fri, Oct 8, 2010 at 2:46 PM, Jian Li <jianli at chromium.org> wrote:
>> > Hi,
>> > I am looking into hooking up ArrayBuffer support in FileReader and
>> > BlobBuilder. It seems that most of the typed array types (ArrayBuffer,
>> > ArrayBufferView, Uint8Array, and etc) have already been implemented in
>> > WebKit, except TypedArray.get() and DataView.
>> Since most of the other questions have been answered:
>> https://bugs.webkit.org/show_bug.cgi?id=46541 covers implementation of
>> DataView. I will try to take care of this in the next week or two. Let
>> me know if you need it before I've gotten to it.
> I do not need it in implementing ArrayBuffer support in FileReader and
> BlobBuilder. Currently I just instantiate a subinstance of ArrayBufferView
> to get the data for testing purpose. But it would be better if we can have
> DataView implemented in order to provide a way for the user to
> read heterogeneous data.
>> > Currently all these typed array supports are put under 3D_CANVAS feature
>> > guard. Since they're going to be widely used in other areas, like File
>> > and XHR, should we remove the conditional guard 3D_CANVAS from all the
>> > related files? Should we also move these files out of html\canvas, say
>> > html\ or html\typearrays?
>> > In addition, get() is not implemented for typed array views. Should we
>> > it?
>> Both the setter and getter in the Web IDL are defined as omittable,
>> which means that in the ECMAScript binding the indexing operator ""
>> is used for both getting and setting values. Both are fully
>> implemented in JSC and V8. At the C++ level, the "item" and "set"
>> methods (see IntegralTypedArrayBase and Float32Array for example) are
>> used in certain cases to implement the getter and setter.
> I noticed that and already used it in my test scripts. Thanks for pointing
> it out.
>> > Jian
>> > _______________________________________________
>> > webkit-dev mailing list
>> > webkit-dev at lists.webkit.org
>> > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
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