Because clear colors are stored as 4 32bit component values, there is
an issue if you try to format instance :
- clearing in R16G16_UNORM
- draw in R32_UINT
Clear will use 2 components of the clear color in dword0 & dword1.
While draw will use only one component of dword0.
This change uses the mutable format information to track whether clear
colors can be non-zero for fast clears.
With :
- non mutable formats, we can fast clear with any color on Gfx > 8
- mutable formats with incompatible component sizes, we can only
fast clear with 0 color
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5930
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17329>
Lionel Landwerlin
682383e5b3