Also, make changes needed for successful compilation and registration
as a texture compression mode.
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
We want to call this function from the shader compiler and having a full
isl_device available at that point isn't practical.
Reviewed-by: Chad Versace <chad.versace@intel.com>
C++ doesn't support designated initializers and g++ in particular doesn't
handle them when the struct gets complicated, i.e. has a union.
Reviewed-by: Chad Versace <chad.versace@intel.com>
The old function tried to work in elements which isn't, strictly speaking,
a valid thing to do. In the case of a non-power-of-two format, there is no
guarantee that the x offset into the tile is a multiple of the format
block size. This commit refactors it to work entirely in terms of a tiling
(not a surface) and bytes/rows.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
