QT widget based UI rendering slow on qt5 when ported from qt4
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If you are seeing a slowdown between Qt 4.8.1 and Qt 4.8.7, you should compare the code of both backend to see what's going on.
wrote on 7 Dec 2018, 16:49 last edited by@SGaist Sure that's what I am doing right now but on a separate note is it possible to use any software acceleration with QTWidgets?
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What software acceleration do you have in mind ?
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wrote on 7 Dec 2018, 23:53 last edited by
@SGaist i just want to understand can opengl or svg libraries be used without gpu or any other backend like directfb can improve performance rendering apart from linuxfb
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You can use mesa for software based OpenGL rendering (don't expect hight performance).
SVG is not a screen rendering backend.
IIRC DirectFB should be faster than plain LinuxFB.
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You can use mesa for software based OpenGL rendering (don't expect hight performance).
SVG is not a screen rendering backend.
IIRC DirectFB should be faster than plain LinuxFB.
wrote on 12 Dec 2018, 06:41 last edited by@SGaist Ok I believe qt 4 has qt-gfx driver which provides some sort of software acceleration when used with linux fb, any idea qt5 has any such driver which I can use?
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You have the complete list of backend available here.
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