Qt4.8.2 qws with powervr opengl driver for mbx lite

  • Hi,
    I am trying to integrate powervr driver for mpc5121 with mbx lite. When I run the example programs (began with hellogl_es and 2dpainting) I get the error message "QEglContext::createSurface(): Unable to create EGL surface, error 0x300b", which means "EGL_BAD_NATIVE_WINDOW". I could isolate the line, where it happens: src/opengl/qgl_qws.cpp line 160

    @surf = eglCreateWindowSurface
    (context->display(), context->config(), windowDrawable, props);

    when I change this line to

    @surf = eglCreateWindowSurface
    (context->display(), context->config(), 0,0);@

    everthing almost works. What does work, is hellogl_es. What doesn't work is 2dpainting: the native part works fine, the open gl part is shown at left-bottom of the screen. I can't change this location. When I start the app with
    ./2dpainting -qws -display linuxfb
    I see the two widgets in their right places, but wenn I start the app with
    ./2dpainting -qws -display powervr
    the opengl part is at bottom left of the screen.
    Any suggestions on this behavior? Can it depend on the changed qgl_qws.cpp ?

    Other problem is, when the programm has more then one qglwidget. I can't run these programs, they quit with 0x3003 EGL_BAD_ALLOC error message, but only when I use the changed qgl_qws.cpp With the original one, they quit with 0x300b.
    Any suggestions on this one?

    Best regards

Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.