Change in coreboot[master]: libpayload: cbgfx: Clear screen by sequential access

[Hung-Te Lin (Code Review)]

Hung-Te Lin has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/57104 )

Change subject: libpayload: cbgfx: Clear screen by sequential access
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Patch Set 5:

(1 comment)

File payloads/libpayload/drivers/video/graphics.c:

https://review.coreboot.org/c/coreboot/+/57104/comment/32eb2237_1eb10846 
PS4, Line 637: 		memset(FB, color & 0xff, fbinfo->y_resolution * bpl);
I think most people cannot identify the difference if we simply use #202020 or #21212121 ... You may quickly test if that would speed up the execution time.
(the
> said memcpy() is slower than the 2-for-loop code below (not related to memset in line #637).

Yes I know, but I wonder if memset is much faster then the loops, no matter the old two-for-loop or your new algorithm.