QtQuick 1.0 with opengl support?
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Here are my configure options. Is there everthing in or is there some option missing for opengl support in Qt 4.7.2?
@./configure
-verbose
--force-pkg-config
-no-separate-debug-info
-prefix /usr
-hostprefix $(STAGING_DIR)/usr
-fast
-no-rpath
-nomake examples
-nomake demos
-opensource -confirm-license
-platform linux-g++
-arch linux-g++
-xplatform qws/linux-x86-g++
-xplatform qws/linux-x86-g++
-no-pch
-qt3support
-no-openssl
-no-webkit
-no-multimedia
-no-phonon
-no-cups
-no-nas-sound
-no-scripttools
-qt-zlib
-qt-gif
-qt-libtiff
-qt-libpng
-qt-libmng
-qt-libjpeg
-xmlpatterns
-svg
-qt-sql-sqlite@ -
I could solve this problem:
When i enable the graphicsystem opengl i got the error message “Unable to load graphicssystem “opengl”“….Does anybody know howto solve it?
I forgot to copy the /usr/plugins/ to my target. Now i do not get this error, but the performance for the home control demo is still very bad.
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To be able to use the opengl graphicssystem, I would assume that you would need to pass the '-graphicssystem opengl' option to configure. And probably also '-opengl es1' or '-opengl es2' to specify the version of OpenGL ES to use. But maybe those get set to suitable values by default.
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I still make no performance difference in Qt 4.7.2 i will try this with Qt5 now
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Is there any way to test the that opengl is really used by declarative view? I allready took another opengl demo from qt (pathstroke). This one runs very well on it.
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i use this command: ./smarthome -graphicssystem opengl -opengl es2
i use this demo http://qt-project.org/wiki/Home_Control_Demo
with Qt 4.7.2 on Linux X11Thx for your help!!
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OK, but I don't think you can use '-opengl es2' as an option to the application, it is a configure option. '-graphicssystem opengl' happens to be both a configure option and an application option.
And to be able to use a QGlWidget as viewport, you'll have to modify the C++ source code. -
At the moment i do create the Qml Viewer like this:
@ QmlApplicationViewer viewer;
viewer.setOrientation(QmlApplicationViewer::ScreenOrientationLockLandscape);
viewer.setMainQmlFile(QLatin1String("qml/smarthome/smarthome.qml"));
viewer.show();@Could you give me a help what i have to do different?
Thx
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Haven't used the QmlApplicationViewer, so I don't know how to do that, sorry. I assume you would have to change the QmlApplicationViewer source code, where the declarative view is created. Just create a QGlWidget, and set it as the declarative view's viewport. You may also have to adjust its QGlFormat to something suitable for your device.