Change in coreboot[master]: libpayload: cbgfx: Replace bilinear resampling with Lanczos

[Paul Menzel (Code Review)]

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/42792 )

Change subject: libpayload: cbgfx: Replace bilinear resampling with Lanczos
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Patch Set 15:

(2 comments)

https://review.coreboot.org/c/coreboot/+/42792/15//COMMIT_MSG 
Commit Message:

https://review.coreboot.org/c/coreboot/+/42792/15//COMMIT_MSG@9 
PS15, Line 9: This patch improves the image resampling (scaling) code in CBGFX to use
            : the Lanczos algorithm that is widely considered the "best" resampling
            : algorithm (e.g. also the first choice in Python's PIL library).
Do you have a test image, the differences can easily be seen with?

https://review.coreboot.org/c/coreboot/+/42792/15//COMMIT_MSG@12 
PS15, Line 12: and therefore slower than bilinear
             : resampling
It’d be great if you could provide some specific data: On <device> there is <1 ms> difference.

Can this be easily measured by enabling some option?