[PyOpenCL] Whoa...shared contexts work now!

[Ian Johnson]

Hey Keith,
I'm not sure exactly why it matters on Windows, but by specifying the device
you are using clCreateContext rather than clCreateContextFromType when
creating the context. When using a CPU that can share with GL it probably
matters, you can see some C API examples here:
http://sa10.idav.ucdavis.edu/docs/sa10-dg-opencl-gl-interop.pdf



On Fri, Feb 25, 2011 at 9:48 AM, Keith Brafford <keith.brafford at gmail.com>wrote:

> I also finally got the gl interop demo and Enjalot's "part2" demo working
> on my
> CPU context-only machine.  I used the newest code in the repo, but I don't
> know
> if that matters.  I ended up having to change the context acquisition code
> from
> this:
>
>    else:
>        ctx = cl.Context(properties=[
>            (cl.context_properties.PLATFORM, plats[0])]
>            + get_gl_sharing_context_properties())
>
> to this:
>
>    else:
>        ctx = cl.Context(properties=[
>            (cl.context_properties.PLATFORM, plats[0])]
>            + get_gl_sharing_context_properties(), devices =
>                                      [plats[0].get_devices()[0]])
>
> Now it works.
>
> Any idea why that matters for me?
>
> --Keith Brafford
>
>
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>



-- 
Ian Johnson
http://enja.org
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