gcc 11 warns:
../src/util/format/u_format_fxt1.c:940:22: warning: ‘fxt1_variance.constprop’ accessing 128 bytes in a region of size 64 [-Wstringop-overflow=]
940 | int32_t maxVarR = fxt1_variance(NULL, &input[N_TEXELS / 2], n_comp);
But, suspiciously, if you inline fxt1_variance the warning goes away.
What's happening is that the 2nd arg is uint8_t[N_TEXELS][MAX_COMP], so
it looks like we're passing too small of an array in since gcc knows
that `input` is also [N_TEXELS][MAX_COMP]. Fair enough. Fix the
signature to reflect what's actually going on, and remove some unused
arguments while we're at it.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10671>
The s8x24 is a packed group in the format, and for packing we properly
write our s8 in the low bits of the 32, but for unpacking we tried
treating it as a byte array.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7776>
Before we can fix big endian, we kind of have to agree on how pixel data
should be laid out in memory.
For this we have to use packed data for !is_array declared formats and per
element values for is_array ones.
Also we need proper PACKED_1xn definitions for BE.
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7776>
channel datatypes in Mesa are the host's endianness. For example,
PIPE_FORMAT_R32_UINT doesn't do a bswap in and out in u_format_table.c's
pack/unpack functions. So, z32_unorm shouldn't be byte swapping either,
and neither should z24s8 which is also a packed format, and once you've
got those it becomes clear that all of the swaps in this file were
mistaken.
Things would mostly work out because it's unusual to read/write Z/S data
through the GL API, and even for drivers like softpipe as long as the pack
and unpack both swap it could work anyway. However, the bug would be
visible in glReadPixels() with the matching datatype which would hit the
memcpy fastpath without doing another swap.
Caught by a mesa/main unit test on transitioning to using these
pack/unpack functions.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10336>
In looking at the profile of dEQP, GLES3 was spending 5-10% of its time in
ReadPixels, and almost all of that is b8g8r8a8_unorm8. It's really slow
because we're getting about 47MB/s by doing uncached reads 32 bits at a
time in the code-generated unpack. If we use NEON to generate larger bus
transactions, we can speed things up to 136MB/s. In comparison, raw
ldr/str read/writes with no byte swapping can hit a max of 216MB/sec.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10014>
We have only a few callers of unpack that do rects, so add a helper that
iterates over y adding the strides. This saves us 36kb of generated code
and means that adding cpu-specific variants for RGBA format unpack will be
much simpler.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10014>
After the pixel block width and height, a third field is used to
store the pixel block depth. Document this field.
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10134>
MSVC warns (loudly) about a mismatch between the generated functions in
u_format_table.c and the definition of util_format_[un]pack_description,
specifically having 'restrict' in the function but not in the pointer
type in the struct.
So, add 'restrict' everywhere - to the function types, and to the rest
of the implementations that are assigned to those structs.
v2: util_format_unpack_description is used in gallium/auxiliary/translate
Fixes: 5785fdac ("u_format: Mark the generated pack/unpack src/dst args as restrict.")
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9670>
Calling code to pack/unpack with overlap would be already be undefined.
Cuts 50k of text on x86_64 release builds from the compiler having more
freedom in the src/dst loads knowing that they don't interfere with each
other.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9500>
lavapipe/llvmpipe need this to rule out scaled formats for non-vertex
format usage. Note NONE is defined as scaled in u_format, but for
the purposes of this helper I don't want it to be considered scaled.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8907>
We were declaring the temps, then in the same order declaring
assignments to those temps. The code is more legible (and shorter)
with the assignments moved in place.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6297>
We weren't clamping the float Z value, just multiplying it by a big
float and casting that to int. This makes util/format's z unpacking
match Mesa's.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6297>
The code was doing the bit-shift trick, but not accounting for the
rounding necessary which the Mesa unpack code was previously doing.
Using the helpers prevents a regression in
KHR-GL46.copy_image.smoke_test on iris as we consolidate the
pack/unpack code.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6297>
It complains about shifting 1<<31 being undefined, so make it a 1u.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6297>
This is a set of very nice, complete helpers for moving around bits in
various formats, and we want to retain its behavior when deduplicating
Mesa's format pack/unpack and gallium's.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6297>
Function that checks if the format has its alpha component forced to 1.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7816>
MSVC has no idea about these pragmas, and spews warnings about them,
making it hard to spot real problems. So let's only use these macros on
GCC.
Fixes: 2ec290cd92 ("util: Fix/silence variable shadowing warnings")
Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7633>
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Neha Bhende <bhenden@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7260>
This is a planar, subsampled format. It's basically NV12, but without
colorspace conversion.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6693>
This reverts commit 4fb2eddfdf.
This reverts commit 7a1deb16f8.
This reverts commit 2b6a172343.
This reverts commit 5af81393e4.
This reverts commit 87900afe5b.
A couple of problems were discovered after this series was merged that
cause breakage in different configurations:
(1) It seems that using -mf16c also enables AVX, leading to SIGILL on
platforms that do not support AVX.
(2) Since clang only warns about unknown flags, and as I understand
it Meson's handling in cc.has_argument() is broken, the F16C code is
wrongly enabled when clang is used, even for example on ARM, leading
to a compilation error.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3583
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6969>
We were calling the table-based unpack functions from inside the pack and
unpack table's methods, so if anything included these pack functions (such
as a call to a table-based pack function), you'd pull in all of unpack as
well.
By calling them explicitly, we save some overhead in these functions
(switch statement, address math on the zero x,y arguments) anyway.
Reviewed-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6307>
Like we just did for pack functions for freedreno, it will be useful to be
able to pick out a specific rgba unpack function instead of going through
the table.
Reviewed-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6307>
The vallium layer has a requirement to insert and extra the 24-bit
unorm value as a unorm value (not as a float etc). Add helpers
to facilitate that.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6082>
This lets the compiler CSE calls to them on the same format. This is
particularly relevant for the description table lookup calls, which other
inlines might do internally.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6305>
A single format either had the float, the sint, or the uint version.
Making the dst be void * lets us store them in the same slot and not have
logic in the callers to call the right one.
-6kb on gallium drivers
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6305>
Some of the generated functions can be useful without going through the
format table (filling border color struct in turnip). By not calling these
functions through the format table, we should eventually be able to garbage
collect the unused packing functions, and also allows LTOs to happen.
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/6093>
I did this as a separate commit to make the previous one more reviewable.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5826>
