This reverts the functional part of commit
d17ff2f7f1, leaving the unit test for
mesa/pipe agreement on what's an array.
The issue is that the util_channel_desc.shift values on array formats are
not used for bit addressing in memory, they're bit addressing within a
word treating a pixel of the format as a native type, as seen by
llvmpipe's use of the values to do shifts (see
lp_build_unpack_arith_rgba_aos() for example). This means the values are
nonsensical for 3-byte RGB, but then llvmpipe doesn't expose those formats
so it works out.
I still want to clean up our big-endian format handling at some point, but
let's fix the s390x regression first, sort out our format unit tests in
CI, then be able to refactor with confidence.
Fixes: d17ff2f7f1 ("gallium: Fix big-endian addressing of non-bitmask array formats.")
Closes: #2472
Acked-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3721>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3721>
Almost all users of the unpack functions don't have strides to plug in
(and many are only doing one pixel!), and this will help simplify
them.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2744>
Fixes: 3c45c4bc44 ("util: Cope with the fact that formats in u_format.csv are not ordered.")
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Add some missing vulkan formats to util/format, this solves all the missing
pipe format cases for the formats that turnip supports.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3170>
Eric recently added PIPE_FORMAT_FXT1_RGB[A] as part of his format
unification work. This was really most of the work of implementing
the extension. We just need to handle it in a couple of places and
expose the extension.
v2: Reject the new formats in llvmpipe_is_format_supported to prevent
crashes because it doesn't know how to handle the new formats.
Reviewed-by: Marek Olšák <marek.olsak@amd.com> [v1]
Reviewed-by: Eric Anholt <eric@anholt.net> [v1]
To make PIPE_FORMATs usable from non-gallium parts of Mesa, I want to
move their helpers out of gallium. Since u_format used
util_copy_rect(), I moved that in there, too.
I've put it in a separate directory in util/ because it's a big chunk
of related code, and it's not clear to me whether we might want it as
a separate library from libmesa_util at some point.
Closes: #1905
Acked-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
