[Development] QT 5.3 DirectFB port

[Bobby Philip]

I have been doing a little more digging into this. I can see
QDirectFBWindow being created by the QPlatformIntegration APIs, and this
window is being used in QDirectFBBackingStore. But the problem I see is
that the surface being associated with this window is not a primary
surface. I think this is why I dont see anything on the output.
I would like to know whether the surface associated with the layer has to
be primary for its contents to be visible. Also does setting the
cooperativelevel have any effect on this, or should a specific cooperative
level be set to DFB to get a primary surface.


Regards
B

On Thu, Apr 9, 2015 at 4:17 PM, Bobby Philip <bobbyphilip at gmail.com> wrote:

> Hi,
>  I have been looking at how the DirectFB QPA platform inside QT works.
> I have seen how inside QDirectFbIntegration::connectToDirectFb() the
> DirectFB interface is initialised followed by the screen and input module.
>
> On my platform atleast, when I create a widget, I see a QDirectbWindow
> being created, and when it is set visble, a Flip is called for this surface.
>
> What I havent understood, is how the output of a newly created surface is
> blitted to the surface belonging to the layer belonging to the screen which
> was inited earlier. I believe only when graphics is blitted to this surface
> will it actually be seen.
>
> Could someone point me to how this is done. I am working on a mips based
> platform and newly porting QT5.3 to it.
>
> Regards
> B
>
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