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List:       enlightenment-devel
Subject:    Re: [E-devel] evas gl_x11 engine support?
From:       Carsten Haitzler (The Rasterman) <raster () rasterman ! com>
Date:       2016-05-27 15:04:35
Message-ID: 20160528000435.ee1e033dc9d11cdd8b1559df () rasterman ! com
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On Fri, 27 May 2016 14:34:10 +0000 Jason Vas Dias <jason.vas.dias@gmail.com>
said:

> Thanks for the info Carsten -
> After much rebuilding & experimentation, I found this fix -
> The eWebKit2 example program at :
>       http://ewebkit.github.io/ewebkit-doc/ewebkit2/html/
> simply needs modification :
> It used to say:
>      Ecore_Evas *win;
>      ...
>      win = ecore_evas_new(NULL, 0, 0, 800, 600, NULL);
> Changing the last line to:
>      win = ecore_evas_new("opengl_x11",  0, 0, 800, 600, NULL);
> does fix the problem.
> 
> I found this out by building the /usr/os_src/efl/src/examples/evas/evas-gl.c
> example .
> 
> But why doesn't it work with any of these environement variable settings :
>     $ ELM_ENGINE=opengl_x11 ELM_ACCEL=gl  ./test
> No combination of ELM_ENGINE / ELM_ACCEL settings seem to have any
> effect - only explictly giving the "opengl_x11" string to ecore_evas_new
> works. Shouldn't the environment variable settings work also ?

this doesnt work with the elm stuff... because you are not using elm! you're
using a much lower level api... ecore_evas. if you want easier usage.. use
elm. :) highly suggested.

look at ephoto, rage, terminology, edi, eflete, enventor and others. theyuse
elm. elm has quite a bit of docs and docs on enlightenment.org to get you
started and more. lots of samples in src/bin/elementary/test_*.c - those are
all the tests in elementary_test (run it and see)

> Thanks & Regards,
> Jason
> 
> 
> 
> 
> 
> On 27/05/2016, Carsten Haitzler <raster@rasterman.com> wrote:
> > On Fri, 27 May 2016 13:35:34 +0000 Jason Vas Dias
> > <jason.vas.dias@gmail.com>
> > said:
> >
> > the app at RUNTIMe is not using gl. efl will build various engines, gl
> > being
> > one of them, another software. elementary config lets you choose the
> > default
> > (no accel, hardware/gl/whatever). if an app really wanted gl support it can
> > request an accel preference with an api call (rage for example request
> > acceleration - eg gl for video)
> >
> >> Good day -
> >>
> >> Please could anyone let me know how to get evas "GL engine" support  in
> >> latest
> >> EFL library.
> >>
> >> Trying to run any ewebkit2 application under the efl-1.17.99 library
> >> built from latest GIT master  fails with :
> >>
> >> ERR<5636>:evas_main /usr/os_src/efl/src/lib/evas/canvas/evas_gl.c:151
> >> evas_gl_new() Evas GL engine not available.
> >>
> >> But the EFL configure output suggests otherwise:
> >>
> >> <quote><pre>
> >> ------------------------------------------------------------------------
> >> efl 1.17.99.47429
> >> ------------------------------------------------------------------------
> >>
> >> Configuration...: profile=dev os=linux-gnu
> >> ...
> >>   X11    ...........: xlib
> >>   OpenGL........: full
> >> ...
> >> Evas............: yes (-lua-old +fontconfig +fribidi -harfbuzz +cserve
> >> -tile-rotate dither-mask=big -hyphen)
> >>   Engines.......: buffer=static -fb -psl1ght -gl-cocoa -gl-sdl
> >> -software-gdi -software-ddraw -wayland-egl +wayland-shm -drm -gl-drm
> >> -eglfs +software-xlib +gl-xlib
> >> ^^^^^^^
> >>   Image Loaders.: bmp=static eet=static generic=static -gif ico=static
> >> jpeg=static -jp2k pmaps=static png=static psd=static tga=static +tiff
> >> wbmp=static +webp xpm=static tgv=static dds=static
> >>
> >> </pre></quote>
> >>
> >> Doesn't the '+gl-xlib" evas Engines flag signify that the evas
> >> opengl-x11 engine is supported?
> >>
> >> Then why does src/lib/evas/canvas/evas_gl.c get a NULL gl_context_create?
> >> :
> >> <quote><pre>
> >>      if (!evas_gl->evas->engine.func->gl_context_create)
> >>      {
> >>          ERR("Evas GL engine not available.");
> >>      ...
> >> </pre></quote>
> >>
> >> I can see there used to be a 'gl_x11' engine in evas legacy :
> >>
> >>
> >> https://git.enlightenment.org/legacy/evas.git/tree/src/modules/engines/gl_x11
> >>
> >> Do I need to port this to modern evas to get GL support ?
> >>
> >> Any suggestions as to what I could set
> >>       evas_gl->evas->engine.func->gl_context_create
> >> to in order to convince evas_gl.c that GL is supported ?
> >>
> >> Any responses gratefully received.
> >>
> >> Thanks & Regards,
> >> Jason
> >>
> >
> >
> > --
> > ------------- Codito, ergo sum - "I code, therefore I am" --------------
> > The Rasterman (Carsten Haitzler)    raster@rasterman.com
> >
> >
> 


-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster@rasterman.com


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