eglglessink on Raspberry PI

[Julian Scheel]

Finally I've opened a bug with the reworked code:
https://bugzilla.gnome.org/show_bug.cgi?id=693665

Am Donnerstag, den 31.01.2013, 14:56 +0100 schrieb Julian Scheel:
> Hi Sebastian,
> 
> Am 31.01.2013 um 09:16 schrieb Sebastian Dröge <sebastian.droege at collabora.co.uk>:
> 
> > On Di, 2013-01-22 at 13:31 +0100, Julian Scheel wrote:
> >> Hi,
> >> 
> >> I have done some work on adding a Raspberry PI support to the
> >> eglglessink. A very rough preliminary patch is attached. Especially the
> >> configure.ac is evil, but I haven't had the time to properly sort out
> >> the build issues I faced yet.
> >> Actually the gl context is created and all gl calls seem successfull,
> >> but the output is only a single color plane. The color seems to be what
> >> is in the top left corner of the input picture.
> >> I wonder about what possibly could cause this? One thing I could imagine
> >> would be the VertexAttribPointer settings. I don't really understand the
> >> code there:
> >> 
> >>  glVertexAttribPointer (eglglessink->eglglesctx.position_loc[0],
> >> 	3, GL_FLOAT, GL_FALSE, sizeof (coord5),
> >> 	(gpointer) (0 * sizeof (coord5)));
> >> 
> >> What does the (gpointer) (0 * sizeof (coord5)) as vertex array pointer
> >> mean? For texloc the code is quite similiar.
> > 
> > It's the offset in the vertex array.
> 
> Thanks, in the meantime I was able to understand the code. Actually it seems we hit a bug in the broadcom GLES implementation. I have opened a bug in the raspberry firmware project: https://github.com/raspberrypi/firmware/issues/142
> So it should be under investigation by broadcom now.
> 
> > Could you open a bugreport for this?
> 
> Yes I will open a bug and attach my code there.
> 
> Regards,
> Julian
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