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Linux/AM4378: Graphics acceleration using Qt QML

Phuc Chinh Bui
Prodigy 160 points

Part Number: AM4378

Tool/software: Linux

Hi

When developing a Qt application on AM437x EVM, I have a problem as below :

I have a QquickWidget in main.ui file and a qml file. In qml file, I have some ShaderEffect. After I set qml source to QuickWidget (ex : qquickWidget->setSource(Qurl….)), my application become very slow, all communication threads such Dcan, UART response slowly.

May be problem is that the graphics acceleration core in AM4378 isn’t activated by default processor sdk. Please let me know your opinion. And if it’s right, what you should I do to activate the acceleration ?

Thank you.

Ps: My system : Linux Host 16.04 LTS, ti-processor-sdk-linux-am437x-evm-04.03.00.05