Monday, May 3, 2010

Qt Embedded for No-Framebuffer systems

How does one support rendering operations to an offscreen memory surface in Qt Embedded ? By writing a QScreen driver in Qt. This use-case occurs in systems that do not have a frame buffer, for example, and for test automation purposes - where the LCD or display is not accessible.

The "livemem" screen driver allows the developer to do this.

Get the README from

https://gforge.ti.com/gf/project/gleslayer/scmsvn/?action=browse&path=%2Ftrunk%2FPackages%2FOMAP3_Graphics_SDK%2Fpatches%2Fqt_livemem%2FREADME&view=markup

Get the patch (contains a binary) from

https://gforge.ti.com/gf/project/gleslayer/scmsvn/?action=browse&path=%2Ftrunk%2FPackages%2FOMAP3_Graphics_SDK%2Fpatches%2Fqt_livemem%2Fgfxdrivers.patch&view=markup

The Qt/Embedded architecture is at,

http://doc.trolltech.com/4.6/qt-embedded-linux.html

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