[Interest] Qt on Windows Phone 8

[lorn.potter at nokia.com]

On 22/06/2012, at 12:53 AM, ext Jason H wrote:

> "Windows Phone 8 offers native support for the C and C++ development languages. This will be a boon for developers. Microsoft also plans to offer a wide range of APIs that work between Windows 8 and Windows Phone 8, which is possible thanks to the shared core." http://www.informationweek.com/news/windows/operatingsystems/240002414
> 
> Qt? :-)

>From what I understand, until someone ports from Win32 to WinRT, or adds a WinRT platform, I doubt Qt will run very well on Windows Phone 8.


> 
> 
> From: Jason H <scorp1us at yahoo.com>
> To: qtnext <qtnext at gmail.com>; "interest at qt-project.org" <interest at qt-project.org> 
> Sent: Thursday, June 21, 2012 10:42 AM
> Subject: Re: [Interest] Qt on Windows Phone 8
> 
> There was an experimental DirectX back-end at one point in time...(2006?) QPA to the rescue today?
> 
> 
> From: qtnext <qtnext at gmail.com>
> To: interest at qt-project.org 
> Sent: Thursday, June 21, 2012 10:27 AM
> Subject: Re: [Interest] Qt on Windows Phone 8
> 
> if I understand  correctly ... at this time :
> - Ios  : QT5 qml can be port to ios regarding V8
> - WP8 : Qml qt5 use opengl acceleration, WP8 will use only directx 11 .. 
> perhaps angle lib is the solution ?
> 
> 
> Le 21/06/2012 14:33, Till Oliver Knoll a écrit :
> > 2012/6/21 Konstantin Tokarev <annulen at yandex.ru>:
> >>
> >> 21.06.2012, 15:05, "Till Oliver Knoll" <till.oliver.knoll at gmail.com>:
> >>> As for iOS, I've heard that "No JavaScript interpreter allowed" is a
> >>> problem to properly port Qt/QML on the iPhone/iPad (that comes from
> >>> the App Store rule that "No interpreter allowed" - not specifically
> >>> JavaScript).
> >> However, Lua interpreter is allowed.
> > Yes, true! In fact, I have to revise my previous statements:
> >
> > * Apple apparently /allows/ interpreters in apps, as long as your app
> > doesn't have the capability to download /external/ code to be
> > interpreted (as to circumvent the "In-App purchase" - again, an
> > "economical reason", not a "technical based one")!
> >
> > * The reason why I wrongly stated that Apple would disallow
> > (JavaScript) interpreters in general was because I read (on this list)
> > that people had trouble with porting the V8 JS engine (of Qt 5/QML).
> > But /not/ because that was forbidden per se, but rather because of
> > Just In Time compilation which apparently does not work/is forbidden
> > on iOS, due to sandbox restrictions (or so; didn't bother to go into
> > details here):
> >
> > "If you embed your own interpreter engine (any programming language),
> > you will have to disable JIT (or any other dynamic executable code
> > generation), as writing executable code will not work in the app
> > sandbox on stock OS iOS devices."
> > [http://stackoverflow.com/questions/6482643/v8-javascript-engine-and-mac-app-store]
> >
> >
> > So, for Apple basically as long as it is made sure that you pay your
> > 30% to Apple for every buck you earn they don't lock you in into a
> > specific technology or language (even though the "economical
> > constraints" do have technical implications, off course).
> >
> > And I think Microsoft will just follow the same reasoning when it
> > comes to allowing apps on Windows 8 Mobile (or whatever it will be
> > called) - or Windows 8 desktop, should there ever be a similar "App
> > Store".
> >
> > Cheers, Oliver
> > _______________________________________________
> > Interest mailing list
> > Interest at qt-project.org
> > http://lists.qt-project.org/mailman/listinfo/interest
> 
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Lorn Potter
Senior Software Engineer, Core Enablers/QtSensors