[QtonPi] Qt Gles 2.0

[Phil Thompson]

On Mon, 15 Oct 2012 14:49:07 +0200, Samuel Rødal <samuel.rodal at digia.com>
wrote:
> On 10/15/2012 02:25 PM, Eden Harris wrote:
>> Hi. I admit, I have not written opengl es code before. When I looked
>> through the source for hellowindow I saw some code that I thought was
>> depreciated in gl 2.0 and so assumed it was gl 1.0.
>>
>> Hellogl_es only has the single window while the es2 example has as you
>> say multiple top-level widgets. I am guessing this is why that example
>> and my program is not working. Real shame if this is true as I really
>> wanted something simple that would work on the pi and enable me to use
>> all the functionality of qt's widgets with opengl.
> 
> QML 2 lets you mix OpenGL with a QtQuick UI without having multiple 
> top-levels.
> 
> But yeah, it would be nice if widgets + QGLWidget also worked with 
> eglfs. In theory we could support multiple top-level widgets even on 
> eglfs, either with a raspberry pi-specific solution taking advantage of 
> the layers there, or with a generic client side compositing solution. 
> Some hacky way of achieving the former shouldn't be too hard, but the 
> latter option would be a bit of work.
> 
> hellogl_es2 might actually work if you use the wayland platform plugin 
> running it inside qwindow-compositor or qml-compositor (which themselves

> would use eglfs and composite everything into a single fullscreen
buffer).

Do you mind explaining what the issues are here? I want my widget based
application to run without needing X11 on the Pi. If this isn't possible
then that suggests problems with the Qt5 architecture.

Thanks,
Phil