[Mesa-dev] [PATCH 0/2] Implement lanczos interpolation filter

Andy Furniss adf.lists at gmail.com
Sun Sep 18 23:54:04 UTC 2016


Andy Furniss wrote:
> Nayan Deshmukh wrote:
>> This series implements lanczos interpolation filter.
>>
>> Andy, I have made some changes to the code. Can you test the
>> patches. I hope the artifacts are reduced this time.
>
> The artifacts are still there.

To be a bit more precise 2 and 4 seem to be artifact free, unless I
didn't find the right sample/scale factor. The others show similar
artifacts to those seen previously.

There is an offset so all images are down and left a bit, though this is
often not obvious, when scaling down from 2160p to 1080p it causes a
white line left and top which is very visible.


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