Apologies for not replying to the thread properly; just joined the list.
The typed array proposal Vlad sent out covers the WebGL use case and
others which assemble data on the CPU to be handed to, for example, a
graphics or audio subsystem.
I've seen some feedback that the proposal misses an impo
On Jan 27, 2010, at 10:56 AM, Vladimir Vukicevic wrote:
new Uint8Array(origArray.buffer, origArray.byteOffset + startIndex,
endIndex - startIndex);
And assuming range(), a real slice() would be: new
Uint8Array(origArray.slice(start, end));
Confirmed with Vlad that the last line's bit to
On 1/26/2010 11:25 PM, Kris Kowal wrote:
On Tue, Jan 26, 2010 at 10:43 AM, Vladimir Vukicevic
wrote:
Howdy,
At Brendan's request, I've just added a new strawman proposal for ES typed
arrays to the wiki. This proposal comes from the WebGL group, which needed
a way of efficient access to a
On Jan 27, 2010, at 10:41 AM, Brendan Eich wrote:
Only native code can do this currently, whether generated by a C++
compiler or even a crazy pattern-matching compiler that tries to
recognize bitwise ops clamping doubles stored in JS Arrays. The
latter, besides being crazy, does not prevent
On Jan 27, 2010, at 10:36 AM, P T Withington wrote:
On 2010-01-27, at 13:17, Brendan Eich wrote:
On Jan 27, 2010, at 10:15 AM, P T Withington wrote:
On 2010-01-27, at 13:06, Brendan Eich wrote:
Anyway, we do not want to require exotic techniques. We want to
allow C++ implementations, whic
On 2010-01-27, at 13:17, Brendan Eich wrote:
> On Jan 27, 2010, at 10:15 AM, P T Withington wrote:
>
>> On 2010-01-27, at 13:06, Brendan Eich wrote:
>>
>>> Anyway, we do not want to require exotic techniques. We want to allow C++
>>> implementations, which require constants to avoid obvious per
On Jan 27, 2010, at 10:15 AM, P T Withington wrote:
On 2010-01-27, at 13:06, Brendan Eich wrote:
Anyway, we do not want to require exotic techniques. We want to
allow C++ implementations, which require constants to avoid obvious
performance hits for no good reason. Competition will kill any
On 2010-01-27, at 13:06, Brendan Eich wrote:
> Anyway, we do not want to require exotic techniques. We want to allow C++
> implementations, which require constants to avoid obvious performance hits
> for no good reason. Competition will kill any browser foolish enough to take
> such hits.
That
On Jan 27, 2010, at 9:32 AM, P T Withington wrote:
On 2010-01-27, at 12:17, Brendan Eich wrote:
On Jan 27, 2010, at 8:16 AM, Peter van der Zee wrote:
new ArrayMapping(arrBuf, intBits, intStart, intFinish);
The WebGL use-case cannot tolerate scaling by a variable "intBits"
element width.
On 2010-01-27, at 12:17, Brendan Eich wrote:
> On Jan 27, 2010, at 8:16 AM, Peter van der Zee wrote:
>
>> new ArrayMapping(arrBuf, intBits, intStart, intFinish);
>
> The WebGL use-case cannot tolerate scaling by a variable "intBits" element
> width. It wants constant (compile-time) element size
On Jan 27, 2010, at 8:16 AM, Peter van der Zee wrote:
new ArrayMapping(arrBuf, intBits, intStart, intFinish);
The WebGL use-case cannot tolerate scaling by a variable "intBits"
element width. It wants constant (compile-time) element size.
Moreover, what you propose is strictly less usable
On Jan 27, 2010, at 12:20 AM, Michael Daumling wrote:
I am unsure about the intent of JS ByteArrays. To me, the proposal
looks like an Array implementation, where all elements are
guaranteed to be of the same type. If this is the intent, then fine.
But if the intent is to offer wrappers aro
@mozilla.org] On Behalf Of Kris Kowal
> Sent: Tuesday, January 26, 2010 11:26 PM
> To: Vladimir Vukicevic
> Cc: es-discuss@mozilla.org
> Subject: Re: typed array strawman proposal
>
> On Tue, Jan 26, 2010 at 10:43 AM, Vladimir Vukicevic
> wrote:
>
>> Howdy,
>>
>
-boun...@mozilla.org [mailto:es-discuss-boun...@mozilla.org] On
Behalf Of Kris Kowal
Sent: Tuesday, January 26, 2010 11:26 PM
To: Vladimir Vukicevic
Cc: es-discuss@mozilla.org
Subject: Re: typed array strawman proposal
On Tue, Jan 26, 2010 at 10:43 AM, Vladimir Vukicevic
wrote:
> Howdy,
>
On Tue, Jan 26, 2010 at 10:43 AM, Vladimir Vukicevic
wrote:
> Howdy,
>
> At Brendan's request, I've just added a new strawman proposal for ES typed
> arrays to the wiki. This proposal comes from the WebGL group, which needed
> a way of efficient access to and manipulation of native machine-type a
On 2010-01-26, at 13:43, Vladimir Vukicevic wrote:
> Howdy,
>
> At Brendan's request, I've just added a new strawman proposal for ES typed
> arrays to the wiki. This proposal comes from the WebGL group, which needed a
> way of efficient access to and manipulation of native machine-type arrays;
Howdy,
At Brendan's request, I've just added a new strawman proposal for ES
typed arrays to the wiki. This proposal comes from the WebGL group,
which needed a way of efficient access to and manipulation of native
machine-type arrays; once we came up with a reasonable baseline API, it
looked
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