problem with two consecutive glshader elements with preset in pipeline

[Matthew Waters]

There probably was a bug in the preset handling code that relied on
static variables somewhere.  The glshader element has since been
redesigned in master and is very unlikely to receive any updates in 1.6.

Cheers
-Matt

On 26/10/15 21:39, Hamdi Rakkez wrote:
> Revive thread
>
> On Wed, Oct 21, 2015 at 5:25 PM, Hamdi Rakkez
> <hamdi.rakez.selotec at gmail.com <mailto:hamdi.rakez.selotec at gmail.com>>
> wrote:
>
>     Hi list,
>
>     I'm using gstreamer-1.5.90 on ubuntu 14.04LTS.
>
>     Here is the problem :
>
>     When using two consecutive *glshader* element in a pipeline and
>     one of them have a *preset* property(uniform variable file path),
>     that preset is not taken into consideration (as if it does not
>     exist, and all the uniform variable into the fragment shader take
>     the value 0.0)
>
>     pipeLine :
>     gst-launch-1.0 videotestsrc ! glupload ! glshader
>     location=fragment1.frag ! glshader location=fragment2.frag
>     preset=fragment2_uniform_variables.preset ! gldownload ! glimagesink
>
>     when removing the first *glshader* element from the
>     pipeline, *preset* property works fine.
>
>     Does anyone knows if this is a bug or I'm missing something here ?
>
>     PS: Some behavior if I replace *preset* with *vars* and declare
>     uniform variables withing the pipeline.
>
>     Thanks in advance.
>
>     Best regards,
>     Hamdi
>
>

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