Boris Brezillon
92ea3139c1
AFBC is different from other modifiers (AFRC, u-tiled and linear) in that
metadata is placed in a separate memory section that needs to be properly
sized/aligned. This forces us to have header/body (or metadata/payload)
info stored at the layout level if we don't want to recalculate one
from the other everytime we need to fill descriptors.
Those properties were already present, but some of them were encoded in
non-afbc prefixed fields which makes things very confusing. Let's clarify
that by moving AFBC properties to their own struct, and move the
previously generic {row,surface}_stride_B to a tiled_or_linear struct.
We use a union to combine both.
With this sanitized semantics, we can fix some inconsistencies in our
AFBC layout initialization, hence the functional changes to
test-layout.cpp.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Tested-by: Eric R. Smith <eric.smith@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35555>
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