On Thursday, February 17th, 2022 at 17:12, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > What is C0? > > A non-existing color-indexed mode with zero colors ;-) > Introduced purely to make a check like in the comment below work. > What we really want to check here is if the mode is color-indexed > or not... Maybe it would be worth introducing a drm_format_info_is_color_indexed function? Would be self-describing when used, and would avoid to miss some places to update when adding new color-indexed formats.