In the C23 standard unreachable() is now a predefined function-like
macro in <stddef.h>
See https://android.googlesource.com/platform/bionic/+/HEAD/docs/c23.md#is-now-a-predefined-function_like-macro-in
And this causes build errors when building for C23:
-----------------------------------------------------------------------
In file included from ../src/util/log.h:30,
from ../src/util/log.c:30:
../src/util/macros.h:123:9: warning: "unreachable" redefined
123 | #define unreachable(str) \
| ^~~~~~~~~~~
In file included from ../src/util/macros.h:31:
/usr/lib/gcc/x86_64-linux-gnu/14/include/stddef.h:456:9: note: this is the location of the previous definition
456 | #define unreachable() (__builtin_unreachable ())
| ^~~~~~~~~~~
-----------------------------------------------------------------------
So don't redefine it with the same name, but use the name UNREACHABLE()
to also signify it's a macro.
Using a different name also makes sense because the behavior of the
macro was extending the one of __builtin_unreachable() anyway, and it
also had a different signature, accepting one argument, compared to the
standard unreachable() with no arguments.
This change improves the chances of building mesa with the C23 standard,
which for instance is the default in recent AOSP versions.
All the instances of the macro, including the definition, were updated
with the following command line:
git grep -l '[^_]unreachable(' -- "src/**" | sort | uniq | \
while read file; \
do \
sed -e 's/\([^_]\)unreachable(/\1UNREACHABLE(/g' -i "$file"; \
done && \
sed -e 's/#undef unreachable/#undef UNREACHABLE/g' -i src/intel/isl/isl_aux_info.c
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36437>
this allows eliminating surface refcounting and objects
which, relatively speaking, don't serve much purpose
see MR for details
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34054>
From OpenGL 4.6 - 8.23.1 Depth Texture Comparison Mode
Let Dt be the depth texture value and St be the stencil index
component. If there is no stencil component, the value of St is
undefined. Let Dref be the reference value, provided by the shader’s
texture lookup function. If the texture’s internal format indicates
a fixed-point depth texture, then Dt and Dref are clamped to the
range [0, 1]; otherwise no clamping is performed.
Signed-off-by: Pavel Ondračka <pavel.ondracka@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33140>
Ubo0 is tricky. It exists if there were any uniforms when
lower_uniforms_to_ubo was run. If we try to run that ourselves,
it might be too late and DCE/remove_dead_variables might've been run,
which removed the uniforms and their accesses, without decrementing
num_uniforms. So we have no good way of knowing whether to declare
ubos from [0, N] or [1, N]. In practice this probably doesn't make
much of a difference but the logic is there so ¯\_(ツ)_/¯
If we use the nir option, then dead code isn't run, and num_uniforms
is a true indicator of whether ubo0 exists or not.
Note that this means we are no longer running this pass for internal
shaders that don't come from the GLSL compiler, so various places are
updated to query the nir info bit that's set by running this pass.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28535>
Derefs have index-based access semantics, which means we don't need
custom intrinsics to encode an index instead of a byte offset.
Remove the "masked" store intrinsics and just emit the pair of atomics
directly. This massively reduces duplication between scratch, shared,
and constant, while also moving more things into nir so more optimizations
can be done.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23173>
This is a prepare step to remove depends on p_defines.h in src/util/*
This is done by:
replace pipe_prim_type with mesa_prim
replace shader_prim with mesa_prim
replace PIPE_PRIM_MAX with MESA_PRIM_COUNT
replace SHADER_PRIM_ with MESA_PRIM_
replace PIPE_PRIM_ with MESA_PRIM_
This patch only replace code only
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23369>
