Bug#720092: Please package ocl

[Nobuhiro Iwamatsu]

Hi,

Thanks for your comment.

2014/1/8 Andrey Gursky <andrey.gursky at e-mail.ua>:
> Hi,
>
> oh, your reply on 24. Sep. 2013 was addressed only to
> 720092 at bugs.debian.org and wasn't being cc'ed, so I have not received
> a copy of it.
>
> On Christmas holidays I've tried to build opencv with opencl support
> on Debian Jessie without(!) proprietary OpenCL SDK. It is enough to
> install just 2 additional packages: ocl-icd-dev and ocl-icd-opencl-dev
> in make opencv automatically discover a presence of OpenCL support and
> enable building the ocl module. So you could for now just extend
> build-depends on these 2 packages from main.

Yes, I know about these.
I have debian / control that are additionally matters you pointed out.
  http://anonscm.debian.org/gitweb/?p=debian-science/packages/opencv.git;a=shortlog;h=refs/heads/ocl-support

But please see
  http://www.debian.org/doc/debian-policy/ch-archive.html#s-contrib
and following line in this section.
  "free packages which require contrib, non-free packages or packages
  which are not in our archive at all for compilation or execution, and..".

^^^^^^^^^^^^^^^^^^^^^^^

As in this section, restrictions contrib will also affect the Debian
package other than.

If we always necessary SDK of Intel and Nvidia when using opencv-ocl,
opencv will
set handling of contrib. We can choose the Free If you're available
the Gallium with OpenCL.
Therefore, this is the treatment of main.

I dont know why ocl-icd-opencl-dev was installed into main section. If
this have same problem,
(If the library of DFSG incompatible there is only) this should set to contrib.
I will ask about this to maintainer.

>
> There will be no proprietary/contrib dependencies for installing the
> future package libopencv-ocl. Once one needs to use it, then only
> these users will have to install some non-free OpenCL ICD from
> amd/intel/nvidia. Or(!) one can install locally some free (though not
> 100% functioning) OpenCL ICD and use it. I can't see no impacts on the
> opencv ocl module itself. This was the idea of OpenCL ICD: one can
> link to the loader (e.g. libOpenCL.so from ocl-icd-libopencl1) but
> then use a proprietary one.

Is libOpenCL.so DFSG compatible? if this is DFSG incompatible,
ocl-icd should set to contrib.
Or If there is libOpenCL.so (or ICD) of DFSG compatible, there is no problem.
If you know  libOpenCL.so (or ICD) of DFSG compatible, could you tell me?

>
> If it works out with Gallium - it would be great! But the main thing
> for now is to have the ocl module packaged and then one can experiment
> with the either OpenCL implementation.
>

Yes, I think too.

> Regards,
> Andrey
>
>
> 2014/1/8, Nobuhiro Iwamatsu <iwamatsu at nigauri.org>:
>> Hi,
>>
>> I looked again this problem. We can use the Mesa (Gallium) of X.org to
>> non-free except for libraries.
>>   http://www.x.org/wiki/GalliumStatus/
>>   http://www.x.org/wiki/XorgEVoC/GalliumCompute/
>>
>> Is this right?
>>
>> Best regards,
>>   Nobuhiro
>>
>> 2013/9/24 Nobuhiro Iwamatsu <iwamatsu at nigauri.org>:
>>> Hi,
>>>
>>>> Source: opencv
>>>> Version: 2.4.5+dfsg-0exp1
>>>> Severity: normal
>>>>
>>>> Hi,
>>>>
>>>> there is a "new" module in opencv: ocl, allowing using OpenCL. It is
>>>> introduced almost a year ago [1]:
>>>>
>>>> 2.4.3 (November 2012):
>>>> Technology-preview version of ocl - OpenCL-accelerated computer vision
>>>> algorithms, contributed by the Chinese Academy of Science
>>>>
>>>> and it has been improved in consecutive releases:
>>>>
>>>> 2.4.4 (March 2013):
>>>> The openCL-based hardware acceleration (ocl) module is now mature,
>>>> and, with numerous bug fixes, it is largely bug-free.
>>>>
>>>> 2.4.5 (April 2013):
>>>> there are further improvements and extensions in ocl module:...
>>>>
>>>> 2.4.6 (July 2013):
>>>> Binary compatiblility with both OpenCL 1.1/1.2 platforms. Now the
>>>> binaries compiled with any of AMD/Intel/Nvidia's SDK can run on all
>>>> other platforms.
>>>>
>>>> Please, consider packaging this module.
>>>
>>> I support the ocl module in opencv is difficult in Debian.
>>> Because OCL SDK is in non-free section.
>>> When opencv is dependent on the OCL SDK if, opencv is in contrib section.
>>> Because I want to distribute opencv in the main section, I will not
>>> support ocl module.
>>>
>>> Does this work for you?
>>>
>>> Best regards,
>>>   Nobuhiro
>>>
>>> --
>>> Nobuhiro Iwamatsu
>>>    iwamatsu at {nigauri.org / debian.org}
>>>    GPG ID: 40AD1FA6
>>
>>
>>
>> --
>> Nobuhiro Iwamatsu
>>    iwamatsu at {nigauri.org / debian.org}
>>    GPG ID: 40AD1FA6
>>



-- 
Nobuhiro Iwamatsu
   iwamatsu at {nigauri.org / debian.org}
   GPG ID: 40AD1FA6