Re: [Freeglut-developer] Unifying GLES1 and GLES2

[Diederick C. N. <dc...@gm...>]

Thanks!

Yeah, i think its pretty cool too Sylvain! Please do push, noting
Vinnie's comment about lines 46 and 47 of fg_window_egl.c that should
not be there.

Thanks!
Dee

On Sun, Jun 1, 2014 at 11:42 AM, Vinnie Simonetti
<rcm...@ho...> wrote:
> Tested successfully.
>
> That's pretty cool. Switch between GLES 1.x, 2.0, and 3.0 at runtime.
>
> Vinnie
>
> -----Original Message-----
> From: Diederick C. Niehorster [mailto:dc...@gm...]
> Sent: Saturday, May 31, 2014 11:34 PM
> To: FreeGLUT developers list
> Subject: Re: [Freeglut-developer] Unifying GLES1 and GLES2
>
> Thats good/great to hear! Could you try GLES 3 as well, just to be sure?
>
> Thanks!
> Dee
>
> On Sun, Jun 1, 2014 at 11:28 AM, Vinnie Simonetti <rcm...@ho...>
> wrote:
>> Ok, tested. Works on BlackBerry.
>>
>> Only bug I saw, line 46 and 47 of fg_window_egl.c should not be there.
> Otherwise, it runs GLES 1.x and 2.0. Haven't tried GLES 3.0 yet, but it
> should work from what I can tell.
>>
>> Vinnie
>>
>> -----Original Message-----
>> From: Diederick C. Niehorster [mailto:dc...@gm...]
>> Sent: Saturday, May 31, 2014 6:41 PM
>> To: FreeGLUT developers list; Vinnie Simonetti
>> Subject: Fwd: [Freeglut-developer] Unifying GLES1 and GLES2
>>
>> Hi Sylvain,
>>
>> Thats great! Glad you were able to make this work. If things work well on
> Andriod, I guess you can push. Vinnie, who implemented blackberry support,
> will be testing your patch soon and see how things go on his side.
>>
>> And of course, once we have a working solution, we should contact
> openframeworks and let them know their setup can be simplified greatly by
> using freeglut everywhere, or find out what problems they run into
> preventing them from doing so.
>>
>>
>>  Thanks!
>> Dee
>>
>> ---------- Forwarded message ----------
>> From:  <be...@be...>
>> Date: Sun, Jun 1, 2014 at 6:24 AM
>> Subject: Re: [Freeglut-developer] Unifying GLES1 and GLES2
>> To: fre...@li...
>>
>>
>> Hey,
>>
>> On Sat, May 31, 2014 at 03:23:00PM +0200, be...@be... wrote:
>>> I'm playing a bit with the Raspberry PI and I noticed that
>>> openFrameworks(.cc) is not bothering with double GLES compilation.
>>>
>>> It appears that it's not necessary to compile a GLES1 and GLES2
>>> version separately, you can include both headers and link with both
>>> libs without issue.
>>> (note: unifying GL and GLES still requires dynamically loading OpenGL
>>> and possibly EGL, so it's another story)
>>>
>>>
>>> Attached is a patch.  The main change it introduces is that on GLES,
>>> you need to explicitely specify glutInitContextVersion(2,0) if you
>>> want GLES2 (instead of choosing the FreeGLUT variant to link with).
>>> And of course, the unified lib is now libfreeglut-gles.so (no more
>>> gles1.so/gles2.so).
>>>
>>> I just tested on Mesa/EGL and it works.
>>> I'll try and test if that works with Android.
>>
>> Android: checked :)
>>
>> Still need to pass -DFREEGLUT_GLES so that freeglut_std.h can load to
> right GL headers, but again that's a GL/GLES difference and a different
> story.
>>
>> If there's no objection I'm going to push the patch so I can have a go at
> Raspberry PI support.
>>
>> Updated patch attached with Android.mk updated.
>>
>> I'm still interested in these questions :)
>>
>>> Does that work on BlackBerry too?  What do you think?
>>>
>>> Also, openFrameworks is using FreeGLUT for its GNU/Linux build.
>>> How about approaching them to use FreeGLUT as well for the Windows
>>> (instead of legacy non-free GLUT) and Raspberry PI (instead of their
>>> custom solution) builds? :)
>>
>> --
>> Sylvain
>>
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