[Intel-gfx] [PATCH i-g-t v2] tests/kms_crtc_background_color: overhaul for latest ABI proposal (v2)

[Lionel Landwerlin]

On 13/11/2018 23:22, Matt Roper wrote:
> It's worth noting that we don't seem to be able to test this feature
> with CRC's.  Originally we wanted to draw a color into a plane's FB
> (with Cairo) and then compare the CRC to turning off all planes and just
> setting the CRTC background to the same color.  However the precision
> and rounding of the color components causes the CRC's to come out
> differently, even though the end result is visually identical.  So at
> the moment this test is mainly useful for visual inspection in
> interactive mode.
Hey Matt,
Out of curiosity, are the CRCs different only when with 16bpc? Or with 
8bpc too?

Thanks,

-
Lionel