On Sun, Mar 24, 2019 at 01:21:20PM +0100, Allan Sandfeld Jensen wrote:
> Drivers have slowly stopped using many of the hardware acceleration as
> 2D acceleration in many cards have languished and it is often faster
> to do in software, or the hardware accelerated ones are very limited
> types of op
On 3/24/19 2:53 PM, Allan Sandfeld Jensen wrote:
... and I also advocate for the OpenGL engine.
Agreed as this is one is available on Windows as well.
But unfortunately OpenGL and X11 have been dropped with Qt5 and while
X11 had returned with Qt 5.10 I'm not aware of a replacement for
"-gra
On Sonntag, 24. März 2019 14:08:08 CET Uwe Rathmann wrote:
> Come on this is a technical discussion - not about winning. I have no
> problem with being corrected, but you have to come up with some relevant
> facts.
>
This is not a competition, what would a win be? I don't even hold a side, as I
s
On 3/24/19 1:21 PM, Allan Sandfeld Jensen wrote:
As for the code you showed, that is so 90s. Please enable anti-aliasing, and
try again. Or do any kind of advanced pattern or line endings and joins.
Again: we are talking here about something like an oscilloscope, where
we have to draw a polyl
On 3/24/19 1:13 PM, Allan Sandfeld Jensen wrote:
Because imperative in the case of QPainter means immediate. The
result is expected to have been committed to the paint device when
the call returns.
In case of the X11 paint engine this means that the points have been
sent to the X server - not
On Sonntag, 24. März 2019 11:27:41 CET Uwe Rathmann wrote:
> On 3/23/19 11:09 PM, Allan Sandfeld Jensen wrote:
> > Software implementation is the default for X11 painting, with accelerated
> > paths being addons.
>
> Having those addons is usually pronounced as: the system supports the GPU.
>
> S
On 3/22/19 8:28 PM, Konstantin Tokarev wrote:
BTW, if your main concern is the performance of real-time plotting,
it's extremely unlikely that you'll get better results on EGL/X11
than on EGLFS or EGL/Wayland. Note that you can use QWidgets on any
of these platforms without restrctions.
Not be
On Sonntag, 24. März 2019 11:40:07 CET Uwe Rathmann wrote:
> On 3/24/19 10:41 AM, Allan Sandfeld Jensen wrote:
> > Note though that the recommended way of doing hardware accelerated
> > painting
> > these days with Qt, is using QML or the QtQuick scenegraph from C++.
> > QPainter being so sequentia
On 3/24/19 10:41 AM, Allan Sandfeld Jensen wrote:
Note though that the recommended way of doing hardware accelerated painting
these days with Qt, is using QML or the QtQuick scenegraph from C++. QPainter
being so sequential and imperative will never be able to take full advantage
of OpenGL becau
On 3/23/19 11:09 PM, Allan Sandfeld Jensen wrote:
Software implementation is the default for X11 painting, with accelerated
paths being addons.
Having those addons is usually pronounced as: the system supports the GPU.
Sure there are systems, where this is not the case and things fall back
t
On 3/24/19 9:33 AM, Denis Shienkov wrote:
Yes, I too run X11 on my iMX6 board, but, seems it running without of
any acceleration (I use -platform xcb option to run my app).
Unfortunately I don't have easy access to our project running on the
iMX6 board anymore. But our BSP was made with build
On Sonntag, 24. März 2019 10:07:06 CET Denis Shienkov wrote:
> Allan,
>
> so, do we need in OpenGL support for 2-d acceleration in QtWidget
> applications running via X11? When, e.g. we use QPainter?
>
> I'm already confused... What we need to have to be use the GPU
> acceleration on X11 with QtW
Allan,
so, do we need in OpenGL support for 2-d acceleration in QtWidget
applications running via X11? When, e.g. we use QPainter?
I'm already confused... What we need to have to be use the GPU
acceleration on X11 with QtWidgets?
24.03.2019 11:51, Allan Sandfeld Jensen пишет:
On Sonntag,
On Sonntag, 24. März 2019 09:36:48 CET Denis Shienkov wrote:
> Allan,
>
> > And typically using the OpenGL backed will be even faster unless you
>
> need to run X11 remotely.
>
> Do you mean that OpenGL via EGLFS, without of X11 is faster? For QtWidgets?
>
No, I mean that if you take X11 over
Allan,
> And typically using the OpenGL backed will be even faster unless you
need to run X11 remotely.
Do you mean that OpenGL via EGLFS, without of X11 is faster? For QtWidgets?
24.03.2019 1:09, Allan Sandfeld Jensen пишет:
On Samstag, 23. März 2019 19:00:47 CET Uwe Rathmann wrote:
Ön Fri
Uwe,
> We have an iMX6 board running with X11, so in general it should be
possible.
Yes, I too run X11 on my iMX6 board, but, seems it running without of
any acceleration (I use -platform xcb option to run my app).
Here is a part of Qt-build summary:
EGLFS ...
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