On Thursday 14 May 2015, Nuno Santos wrote:
Hi,
Sorry if the title is not the most appropriated.
I’m developing an app that will be target for iOS/Android/x86/x86_64
Since this is CPU intensive application I think that I will reach a point
were assembly and vector instructions will be
On Thu, May 14, 2015 at 6:39 AM Nuno Santos nunosan...@imaginando.pt
wrote:
Hi,
Sorry if the title is not the most appropriated.
I’m developing an app that will be target for iOS/Android/x86/x86_64
Since this is CPU intensive application I think that I will reach a point
were assembly and
On Thursday May 14 2015 14:52:45 Allan Sandfeld Jensen wrote:
Alternatively use vector intrinsics, but the generic intrinsics are not that
powerful.
To put that in perspective:
there's a yuv4xx conversion routine I once used, I think it's from FFmpeg,
which has a hand-optimised SSE2 version
On 14 May 2015, at 8:43 am, Scott Aron Bloom sc...@towel42.com wrote:
I have a request from a customer, he loves our docked layout.. However, there
are times when he wants to undock a window, and just make it a peer window.
Ie, not a child that is always on top of the mainwindow.
Is
On Thursday May 14 2015 07:59:41 Thiago Macieira wrote:
On Thursday 14 May 2015 13:21:59 René J.V. Bertin wrote:
I never noticed particular performance issues with the input this code was
used with (2-4Gb max).
Asynchronous writing?
If you mean buffered, through standard stdio routines,
On Thursday May 14 2015 16:55:35 René J.V. Bertin wrote:
Audio being in essence 1D data (time series) it should be relatively easy to
deploy template libraries that provide array/vector types the use optimised
SIMD instructions internally. With those you should be able to do better than
with
On Thursday 14 May 2015 13:21:59 René J.V. Bertin wrote:
FWIW, I did something similar a couple of years back. I didn't use Qt, but
good old popen(). I did modify the Win32 version that (IIRC) ships/ped with
MSVC (I used the Express version) so that it didn't open a console window
and could be
On Thursday 14 May 2015 14:52:45 Allan Sandfeld Jensen wrote:
Alternatively use vector intrinsics, but the generic intrinsics are not
that powerful.
To write in a way that the compiler can auto-vectorize, write the CPU
intensive work in simple inner loops without function calls (or only
I have a request from a customer, he loves our docked layout.. However, there
are times when he wants to undock a window, and just make it a peer window.
Ie, not a child that is always on top of the mainwindow.
Is there any way to do this directly in Qt?
Scott
Thanks for all the insights so far.
I confess i’m a newbie regarding performance optimisation. I’m writing a
synthesiser. It’s computing audio on a real time basis and it’s already getting
heavy for 8 voices of polyphony. It’s making an iPad 2 work on the limit which
is not good, specially
On Thursday 14 May 2015 19:24:13 René J.V. Bertin wrote:
On Thursday May 14 2015 07:59:41 Thiago Macieira wrote:
On Thursday 14 May 2015 13:21:59 René J.V. Bertin wrote:
I never noticed particular performance issues with the input this code
was
used with (2-4Gb max).
Asynchronous
Hi, I just wondered if it is possible to make a transparent Menu in QML? I
have set up the background element in the MenuStyle as a semi-transparent
rectangle, but it appears to be a white rectangle behind it that shows
through.
Thanks,
Thomas.
___
Hello:
I was scanning the docs and stack exchange and everywhere and could not find
an example of how to lock a screen to Portrait ONLY in Qt Code.
I tried to lock my Galaxy S2 smartphone to portrait only by issuing:
QScreen* gs = QGuiApplication::primaryScreen() ;
Can anyone share an example on how to implement the asynchronous return of a
result from an Objective-C callback block to Qt?
For example, see the “successBlock:” below which gets called back
asynchronously.
self.PDFCreator = [NDHTMLtoPDF createPDFWithHTML:(NSString*)html
On Thursday May 14 2015 13:38:12 Thiago Macieira wrote:
No, I don't. I mean non-blocking writing.
Well, non-blocking writing usually means that there's a buffer somewhere that
allows the write call to return before everything is written to the destination
media :)
Anyway, I can't remember,
On 15/05/15 08:59, mark diener wrote:
Now, what will NOT work is setting values and Manifest.xml or Info.plist to
universally prevent orientation changes on all IOS/ANDROID devices.
I am only looking to lock to portrait on specific types of devices, not all
IOS/ANDROID devices.
No idea
Hamish:
Why not IOS? I would say that if there is someone with a QT based SDK
method already to go, I would prefer to do that.
I reported my experiences with the 5.4.1 SDK as it stands right now, which
means I do not know how to lock the screen to Portrait unless
I venture onward to native
On Wednesday May 13 2015 06:49:18 Thiago Macieira wrote:
On Tuesday 12 May 2015 17:36:59 Matthew Woehlke wrote:
After further testing, it seems that the problem is caused by writing to
the process's stdin? Is there some issue with writing to a QProcess's
input pipe on Windows? (We are
Hi,
Sorry if the title is not the most appropriated.
I’m developing an app that will be target for iOS/Android/x86/x86_64
Since this is CPU intensive application I think that I will reach a point were
assembly and vector instructions will be needed for maximum performance.
Since ARM and x86
On Thursday May 14 2015 12:06:51 Hamish Moffatt wrote:
Alternatively, if you just want one font throughout, or mostly
throughout, you can set it as your default font with
QApplication::setFont(), then don't specify the font names at all in
your style sheets. This is what we're doing here,
On Thursday 14 May 2015 23:51:46 René J.V. Bertin wrote:
On Thursday May 14 2015 13:38:12 Thiago Macieira wrote:
No, I don't. I mean non-blocking writing.
Well, non-blocking writing usually means that there's a buffer somewhere
that allows the write call to return before everything is
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