[Mesa-dev] [PATCH 2/2] st/vdapu: use lanczos filter for scaling v4

[Nayan Deshmukh]

Hi Leo,

I saw the code in dri3_glx.c and I could somewhat relate some basic code
structure
to the vl_winsys_dri3.c. But I am new to this and not aware of the
terminology
that you used about the buffers. Could you please explain what needs to be
done
in more detail or point me to where I can read about it.

Regards,
Nayan.

On Thu, Sep 1, 2016 at 7:08 PM, Leo Liu <leo.liu at amd.com> wrote:

> Hi Nayan,
>
> About the Prime, I think you have to do is to separate decoder render
> buffer and presentation back buffer,
> and copy back and forth between them for presentation and update. You
> might refer to similar implement
> in glx and egl from loader_dri3_helper.c by grep "is_different_gpu"
>
>
> Regards,
> Leo
>
>
>
> On 09/01/2016 05:18 AM, Nayan Deshmukh wrote:
>
> Thanks, Michel you saved a lot of my time.
>
> Christian, I will get in touch with Leo and get started on this task.
>
> Regards,
> Nayan.
>
> On Thu, Sep 1, 2016 at 2:08 PM, Christian König <christian.koenig at amd.com>
> wrote:
>
>> Am 01.09.2016 um 05:28 schrieb Michel Dänzer:
>>
>>> On 31/08/16 06:53 PM, Nayan Deshmukh wrote:
>>>
>>>> Hi Christian,
>>>>
>>>> You missed a few things in the merge. I will send in the updated patch.
>>>>
>>>> I looked at the code in vl_winsys.c and vl_winsys3.c and also
>>>> at the code in presentation.c where delayed rendering is used. I was
>>>> trying
>>>> to compile using vl_dri3_screen_create() but its giving me some error. I
>>>> will look into the error tonight. My hardware has PRIME configuration.
>>>> So
>>>> is my hardware suitable for it?
>>>>
>>> The code in vl_winsys_dri3.c doesn't support PRIME yet. Might not be too
>>> hard to add though. Grep for "is_different_gpu". Leo might have done
>>> some work on this, so coordinate with him before spending too much
>>> effort on this.
>>>
>>> Thanks for the note, I assumed Leo already implemented that, but wasn't
>> 100% sure.
>>
>> Nayan since you are one of the few contributors with a prime
>> configuration I think it would make sense for you to hack on this first.
>>
>> Would also help getting you into the code and a bit more into the stack
>> in general.
>>
>> Regards,
>> Christian.
>>
>
>
>
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