Re: [Development] New Qt5.4.0 snapshot available

2014-11-13 Thread Nancy Zou
Hi: I want to ask whether qtwayland is included in Qt5.4 release version? If not, When do you plan to put it in? Thank you. Best Regards Nancy From: development-bounces+nancy.zou=csr@qt-project.org [mailto:development-bounces+nancy.zou=csr@qt-project.org] On Behalf Of Kate Alhola Sent

Re: [Development] why Qt app performance low on qpa eglfs or wayland

2014-09-05 Thread Nancy Zou
Hi Millan > You should answer this question yourself and present the results to us. Only > you have your specific software/hardware combination setup properly. I suspect Qt wati for vsyc somewhere because the normal opengl example only cost 14ms (1 vsync) and Qt example openglwindow need 28 ms(

[Development] why Qt app performance low on qpa eglfs or wayland

2014-09-02 Thread Nancy Zou
Hi All I run qt example openglwindow on my embedded system. I find on qpa eglfs, it only have 35fps. On qpa wayland( compostitor Weston 1.5), it only have 13fps. If I run a same opengl demp directly, it can have about 70fps. When run Qt app, I find cpu and gpu loading is not very high. Why the fp

Re: [Development] Segmentation fault with qpa directfb when upgrade qt5.2

2014-08-20 Thread Nancy Zou
Dear Thiago As I have mentioned in QTBUG-40641, I think the root cause is the function QDirectFbIntegration::initialize() was called two times. Since the Qtcore will call it, the original code in QDirectFbIntegrationPlugin::create() should be deleted. Do you think is it reasonable? >Does Qt

[Development] Segmentation fault with qpa directfb when upgrade qt5.2

2014-08-07 Thread Nancy Zou
Hi All Recently, I upgrade qt to 5.2.0 version and I find qpa directfb can't work. directfb version is 1.6.0.3 gdb info: Program received signal SIGSEGV, Segmentation fault. [Switching to LWP 1590] 0xb6079ecc in QThreadPrivate::start(void*) () from /usr/lib/libQt5Core.so.5 (gdb) backtrace #0 0xb60