[Interest] compiling qt with eglfs

[Girish Ramakrishnan]

On Fri, Nov 9, 2012 at 3:53 PM, Girish Ramakrishnan
<girish at forwardbias.in> wrote:
> On Fri, Nov 9, 2012 at 4:22 AM, pritam.ghanghas at gmail.com
> <pritam.ghanghas at gmail.com> wrote:
>>
>>
>> On Fri, Nov 9, 2012 at 11:16 AM, pritam.ghanghas at gmail.com
>> <pritam.ghanghas at gmail.com> wrote:
>>>
>>>
>>>
>>> On Thu, Nov 8, 2012 at 8:06 PM, pritam.ghanghas at gmail.com
>>> <pritam.ghanghas at gmail.com> wrote:
>>>>
>>>>
>>>>
>>>> On Thu, Nov 8, 2012 at 8:00 PM, Samuel Rødal <samuel.rodal at digia.com>
>>>> wrote:
>>>>>
>>>>> On 11/08/2012 01:55 PM, pritam.ghanghas at gmail.com wrote:
>>>>> > I am still stuck with qt 4.8.3 with qpa. It always compiles, but I
>>>>> > never
>>>>> > got it to work.
>>>>> > Now when i try the application its failing at load time itself
>>>>> > # ./hellogl_es2 -qpa -platform egl
>>>>> > Failed to load platform plugin "egl". Available platforms are:
>>>>> > Minimal
>>>>> >
>>>>> > if I try Minimal, I get a segfault.
>>>>> > ./hellogl_es2 -qpa -platform Minimal
>>>>> > Segmentation fault
>>>>> >
>>>>> > backtrace from gdb shows that it crashes in
>>>>> > QGLContext::chooseContext(QGLContext const*) ()
>>>>>
>>>>> The minimal plugin doesn't support OpenGL.
>>>>>
>>>>> > I have no idea what to do next. why didn't I get eglfs plugin when I
>>>>> > had
>>>>> > specified -egl in configure.
>>>>>
>>>>> Try specifying -eglfs and -opengl es2 when running configure and see
>>>>> what the configure output says.
>>>>>
>>> -eglfs was not recognized by configure as a valid option.
>>>>
>>>> I will try that tomorrow. I had tried specifying -qpa eglfs. But that
>>>> didnt help.
>>>> I compiled by actually going to  src/plugins/platforms/eglfs.
>>>> Surprisingly makefile was there. The build system ran qmake on it, but
>>>> somehow never ran make.
>>>> Right now I dont have board to test it. I will get board again tomorrow.
>>>> I will test it and let you know.
>>>
>>> I have the plugin manually compiled. It loads but fails to create surface.
>>>  Could not create the egl surface: error = 0x300b
>>> I think I need to do some platform specific patching in plugin. I am
>>> looking into that now.
>>
>>
>> Finally I got graphcis working with qt 4.8.3 + egl + opengl with a little
>> bit of custom platform initialization in qeglfsscreen.cpp. But now I have a
>> new problem. No input in qpa application, neither mouse nor keyboard.
>> I googled a little bit and found that I should supply -plugins manually
>> while running application.
>>  ./animatedtiles -plugin LinuxInputMouse:/dev/input/mouse0  -qpa -platform
>> EglFS
>> Still no cursor or mouse input. Any ideas ?
>>
>
> eglfs supports display of mouse cursor only in Qt.

s/Qt/Qt5 :)

Girish