| Commit message (Collapse) | Author | Age | Files | Lines |
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There's nothing whatsoever compiler-specific about it other than that's
currently where it's used.
Reviewed-by: Kristian H. Kristensen <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>
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In order to be coherent with the pre-existent API for half floats,
this new API for double is the one meant to be used when doing double
to float conversions. It is no more than a wrapper for the softfloat.h
API but we meant to keep that one private.
v2:
- Fix bug in _mesa_double_to_float_rtz() in the inf/nan detection
using the exponent value.
v3:
- Replace custom f64 -> f32 implementations with the softfloat
one (Andres).
v4:
- Added API usage clarifying comments (Caio).
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
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Implemented fadd, fsub, fmul and ffma for doubles and ffma for floats,
rounding to zero, using a modified implementation from Berkely
Softfloat 3e Library.
Their implementation correctness has been checked with the Berkeley
TestFloat Release 3e tool for x86_64.
v2:
- Reuse util_last_bit64() in _mesa_count_leading_zeros64()
implementation (Connor).
v3:
- Add a specific ffma for floats version (Connor).
- Implement the ffma for doubles version (Andres).
- Lots of fixes in fadd, fsub and fmul (Andres).
- Improved documentation (Andres).
v4:
- Added f64 -> f32 conversion function (Andres).
- Added f32 -> f16 RTZ conversion function (Andres).
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Signed-off-by: Andres Gomez <[email protected]>
Tested-by: Andres Gomez <[email protected]>
Acked-by: Caio Marcelo de Oliveira Filho <[email protected]>
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Move the Weston os_create_anonymous_file code from egl/wayland into util,
add support for Linux memfd and FreeBSD SHM_ANON,
use that code in anv/aubinator instead of explicit memfd calls for portability.
Acked-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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Copied from Weston, upon Daniel's suggestion
Signed-off-by: Lionel Landwerlin <[email protected]>
Suggested-by: Daniel Stone <[email protected]>
Reviewed-by: Daniel Stone <[email protected]>
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readN() taken from igt.
os_read_file() inspired by igt_sysfs_get()
Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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I keep writing this for various schedulers.
Acked-by: Timothy Arceri <[email protected]>
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as well as os_memory*
Reviewed-by: Rob Clark <[email protected]>
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CC: [email protected]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107870
Fixes: 80825abb5d1a7491035880253ffd531c55acae6b
("move u_math to src/util")
Tested-by: Brian Paul <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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Tested-by: Brian Paul <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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this is needed by u_debug
Tested-by: Brian Paul <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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Compilers can use this to generate optimal code for integer division
by a constant.
Additionally, an unsigned division by a uniform that is constant but not
known at compile time can still be optimized by passing 2-4 division
factors to the shader as uniforms and executing one of the fast_udiv*
variants. The signed division algorithm doesn't have this capability.
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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Currently we have two sets of functions for bit counts, one in gallium
and one in core mesa. The ones in core mesa are header only in many
cases, since they reduce to "#define _mesa_bitcount popcount", but they
provide a fallback implementation. This is important because 32bit msvc
doesn't have popcountll, just popcount; so when nir (for example)
includes the core mesa header it doesn't (and shouldn't) link with core
mesa. To fix this we'll promote the version out of gallium util, then
replace the core mesa uses with the util version, since nir (and other
non-core mesa users) can and do link with mesautils.
Acked-by: Eric Engestrom <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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On windows process.h is a system provided header, and it's required in
include/c11/threads_win32.h. This header interferes with searching for
that header, and results in windows build warnings with scons, but
errors in meson which doesn't allow implicit function declarations. Just
rename process to u_process, which follows the style of utils anyway.
Fixes: 2e1e6511f76370870b5cde10caa9ca3b6d0dc65f
("util: extract get_process_name from xmlconfig.c")
Signed-off-by: Dylan Baker <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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This is a simple, invasive, liberally licensed red-black tree
implementation. It's an invasive data structure similar to the
Linux kernel linked-list where the intention is that you embed a
rb_node struct the data structure you intend to put into the
tree.
The implementation is mostly based on the one in "Introduction to
Algorithms", third edition, by Cormen, Leiserson, Rivest, and
Stein. There were a few other key design points:
* It's an invasive data structure similar to the [Linux kernel
linked list].
* It uses NULL for leaves instead of a sentinel. This means a few
algorithms differ a small bit from the ones in "Introduction to
Algorithms".
* All search operations are inlined so that the compiler can
optimize away the function pointer call.
Reviewed-by: Lionel Landwerlin <[email protected]>
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Reviewed-by: Timothy Arceri <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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This is simple linear-walk first-fit allocator roughly based on the
allocator in the radeon winsys code. This allocator has two primary
functional differences:
1) It cleanly returns 0 on allocation failure
2) It allocates addresses top-down instead of bottom-up.
The second one is needed for Intel because high addresses (with bit 47
set) need to be canonicalized in order to work properly. If we allocate
bottom-up, then high addresses will be very rare (if they ever happen).
We'd rather always have high addresses so that the canonicalization code
gets better testing.
v2: - [scott-ph] remove _heap_validate() if NDEBUG is defined (Jordan)
Reviewed-by: Scott D Phillips <[email protected]>
Tested-by: Scott D Phillips <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Marek Olšák <[email protected]>
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v2: style fixes
Reviewed-by: Marek Olšák <[email protected]> (v1)
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While modern pthread mutexes are very fast, they still incur a call to an
external DSO and overhead of the generality and features of pthread mutexes.
Most mutexes in mesa only needs lock/unlock, and the idea here is that we can
inline the atomic operation and make the fast case just two intructions.
Mutexes are subtle and finicky to implement, so we carefully copy the
implementation from Ulrich Dreppers well-written and well-reviewed paper:
"Futexes Are Tricky"
http://www.akkadia.org/drepper/futex.pdf
We implement "mutex3", which gives us a mutex that has no syscalls on
uncontended lock or unlock. Further, the uncontended case boils down to a
cmpxchg and an untaken branch and the uncontended unlock is just a locked decr
and an untaken branch. We use __builtin_expect() to indicate that contention
is unlikely so that gcc will put the contention code out of the main code
flow.
A fast mutex only supports lock/unlock, can't be recursive or used with
condition variables. We keep the pthread mutex implementation around as
for the few places where we use condition variables or recursive locking.
For platforms or compilers where futex and atomics aren't available,
simple_mtx_t falls back to the pthread mutex.
The pthread mutex lock/unlock overhead shows up on benchmarks for CPU bound
applications. Most CPU bound cases are helped and some of our internal
bind_buffer_object heavy benchmarks gain up to 10%.
Signed-off-by: Kristian Høgsberg <[email protected]>
Signed-off-by: Timothy Arceri <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Based on Vladislav Egorovs work on the preprocessor, but split
out to a util functionality that should be universal. Setup, teardown,
memory handling and general layout is modeled around the hash_table
and the set, to make it familiar for everyone.
A notable change is that this implementation is always null terminated.
The rationale is that it will be less error-prone, as one might
access the buffer directly, thereby reading a non-terminated string.
Also, vsnprintf and friends prints the null-terminator.
Signed-off-by: Thomas Helland <[email protected]>
Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <[email protected]>
V2: Address review feedback from Timothy and Grazvydas
- Fix MINGW preprocessor check
- Changed len from uint to int
- Make string argument const in append function
- Move to header and inline append function
- Add crimp_to_fit function for resizing buffer
V3: Move include of ralloc to string_buffer.h
V4: Use u_string.h for a cross-platform working vsnprintf
V5: Remember to cast to char * in crimp function
V6: Address review feedback from Nicolai
- Handle !str->buf in buffer_create
- Ensure va_end is always called in buffer_append_all
- Add overflow check in buffer_append_len
- Do not expose buffer_space_left, just remove it
- Clarify why a loop is used in vprintf, change to for-loop
- Add a va_copy to buffer_vprintf to fix failure to append arguments
when having to resize the buffer for vsnprintf.
V7: Address more review feedback from Nicolai
- Add missing va_end corresponding to va_copy
- Error check failure to allocate in crimp_to_fit
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The functionality is used by glsl and mesa. With the latter already
depending on the former.
With this in place the src/util/ static library libmesautil.la no longer
has a C++ dependency. Thus objects which use it (like libEGL) don't need
the C++ link.
Cc: "17.2" <[email protected]>
Fixes: 02cc35937277 ("egl/wayland: Use linux-dmabuf interface for buffers")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101851
Signed-off-by: Emil Velikov <[email protected]>
Suggested-by: Jason Ekstrand <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Tested-by: Mike Lothian <[email protected]>
Tested-by: James Harvey <[email protected]>
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v2: attempt to fix Android build (Emil)
v3: add missing include path
Reviewed-by: Marek Olšák <[email protected]> (v1)
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This will be used as the basis for unification
Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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We have Vulkan utilities in both src/util and src/vulkan/util. The
latter seems a more appropriate place for Vulkan-specific things, so
move them there.
v2: Android build system changes (from Tapani Pälli)
Signed-off-by: Alex Smith <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
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There are still some distributions trying to support unfortunate people
with old or exotic CPUs that don't have 64bit atomic operations. When
compiling for such a machine, gcc conveniently inserts a library call to
a helper, but it's implementation is missing and we get a linker error.
This allows us to provide our own implementation, which is marked weak
to prefer a better implementation, should one exist.
v2: changed copyright, some style adjustments
v3: [mattst88] Print results with AC_MSG_CHECKING/AC_MSG_RESULT
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93089
Signed-off-by: Grazvydas Ignotas <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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V2: pass the seed to rand_xorshift128plus() so that we can isolate
its uses.
Reviewed-by: Grazvydas Ignotas <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Remove trailing tabs and sort alphabetically.
Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Vedran Miletić <[email protected]>
Acked-by: Juha-Pekka Heikkila <[email protected]>
Reviewed-by: Edward O'Callaghan <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Vedran Miletić <[email protected]>
Acked-by: Juha-Pekka Heikkila <[email protected]>
Reviewed-by: Edward O'Callaghan <[email protected]>
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This will allow us to use it outside of gallium for things like
compressing shader cache entries.
Reviewed-by: Marek Olšák <[email protected]>
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This is a minimal copy of os_thread.h from gallium in order to move
u_queue.{c,h} to this directory.
Reviewed-by: Marek Olšák <[email protected]>
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This will help us move u_queue.c here eventually and also provide
string function wrappers for anyone wishing to port disk_cache.c
to windows.
Reviewed-by: Marek Olšák <[email protected]>
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Provides the ability to read the .note.gnu.build-id section of ELF
binaries, which is inserted by the --build-id=... flag to ld.
Reviewed-by: Emil Velikov <[email protected]>
Reviewed-by: Chad Versace <[email protected]>
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Reviewed-by: Eric Engestrom <[email protected]>
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Reviewed-by: Dave Airlie <[email protected]>
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At the moment we support 5+ different implementations each with varying
amount of bugs - from thread safely problems [1], to outright broken
implementation(s) [2]
In order to accommodate these we have 150+ lines of configure script and
extra two configure toggles. Whist an actual implementation being
~200loc and our current compat wrapping ~250.
Let's not forget that different people use different code paths, thus
effectively makes it harder to test and debug since the default
implementation is automatically detected.
To minimise all these lovely experiences, import the "100% Public
Domain" OpenBSD sha1 implementation. Clearly document any changes needed
to get building correctly, since many/most of those can be upstreamed
making future syncs easier.
As an added bonus this will avoid all the 'fun' experiences trying to
integrate it with the Android and SCons builds.
v2: Manually expand __BEGIN_DECLS/__END_DECLS and document (Tapani).
Furthermore it seems that some games (or surrounding runtime) static
link against OpenSSL resulting in conflicts. For more information see
the discussion thread [3]
Bugzilla [1]: https://bugs.freedesktop.org/show_bug.cgi?id=94904
Bugzilla [2]: https://bugs.freedesktop.org/show_bug.cgi?id=97967
[3] https://lists.freedesktop.org/archives/mesa-dev/2017-January/140748.html
Cc: Mark Janes <[email protected]>
Cc: Vinson Lee <[email protected]>
Cc: Tapani Pälli <[email protected]>
Cc: Jonathan Gray <[email protected]>
Tested-by: Jonathan Gray <[email protected]>
Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Tapani Pälli <[email protected]> (v1)
Acked-by: Jason Ekstrand <[email protected]> (v1)
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Reviewed-by: Timothy Arceri <[email protected]>
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It's not dependent on GLSL and it can be useful for shader caches that don't
deal with GLSL.
v2: address review comments
v3: keep the other 3 lines in configure.ac
Reviewed-by: Emil Velikov <[email protected]>
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vulkan allocation allows for overriding the allocator used,
add some macros for anv/radv to share for this.
Acked-by: Jason Ekstrand <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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This is ported from anv, both anv and radv can share this.
Reviewed-by: Nicolai Hähnle <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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This clears the last bits of the usecases of the hash table
located in mesa/program, allowing us to remove it.
V2: Rebase on top of changes to Makefile.sources
Signed-off-by: Thomas Helland <[email protected]>
Reviewed-by: Timothy Arceri <[email protected]>
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There are also some cosmetic changes.
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This just ports the simpler endian detection bits, addrlib
sharing wants this outside gallium.
Acked-by: Marek Olšák <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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It's used from both mesa main and gallium.
Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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It's used from both mesa main and gallium.
Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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The functions are also useful for mesa.
Introduce src/util/bitscan.{h,c}. Move ffs function
implementations from src/mesa/main/imports.{h,c}.
Move bit scan related functions from
src/gallium/auxiliary/util/u_math.h. Merge platform
handling with what is available from within mesa.
v2: Try to fix MSVC compile.
Reviewed-by: Brian Paul <[email protected]>
Tested-by: Brian Paul <[email protected]>
Signed-off-by: Mathias Fröhlich <[email protected]>
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Needed in NIR too, so move out of mesa/main/imports.c
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
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We want to use intel_debug.c in code that doesn't link to dri common.
v2: Remove unnecessary stddef.h include (Topi), use util/debug.h
in all DRI driver and remove driParseDebugString() (Iago).
Reviewed-by: Topi Pohjolainen <[email protected]>
Signed-off-by: Kristian Høgsberg Kristensen <[email protected]>
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v2:
- Add strndup.h to Makefile.sources (Emil)
- Use calloc instead of malloc (Emil).
- Check if allocation fails (Emil, Jose)
- Add '#pragma once' and include stdlib.h to strndup.h (Jose)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92124
Reviewed-by: Jose Fonseca <[email protected]>
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