[Nouveau] [PATCH] Fix colormap handling at screen depth 30. (v2)

The various clut handling functions like a setup consistent with the x-screen color depth. Otherwise we observe improper sampling in the gamma tables at depth 30. Tested at depths 16, 24 and 30 and tested at depths 24 and 30 that xgamma and gamma table animations work, and with measurement

Re: [Nouveau] [PATCH] Fix colormap handling at screen depth 30.

NVLoadPalette is pretty hard-coded to 256. I haven't looked at what all xf86HandleColormaps does, but it seems pretty suspicious. Also note that the kernel currently only exposes a 256-sized LUT to userspace, even for 10bpc modes. On Thu, Mar 1, 2018 at 1:31 AM, Mario Kleiner

[Nouveau] [PATCH] Fix colormap handling at screen depth 30.

The various clut handling functions like a setup consistent with the x-screen color depth. Otherwise we observe improper sampling in the gamma tables at depth 30. Tested at depths 16, 24 and 30 and tested at depths 24 and 30 that xgamma and gamma table animations work, and with measurement