| Commit message (Collapse) | Author | Age | Files | Lines |
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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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Spotted by Emil Velikov.
Trivial.
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For the case where we convert a double to an int, we should
round the same as we do for floats.
This fixes GL41-CTS.gpu_shader_fp64.state_query
v2: add IROUNDD (Ilia)
Reviewed-by: Ilia Mirkin <[email protected]>
Signed-off-by: Dave Airlie <[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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https://msdn.microsoft.com/en-us/library/ftsafwz3.aspx
v2: use _WIN32 instead of _MSC_VER (Brian Paul)
Signed-off-by: Tapani Pälli <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92183
Reviewed-by: Brian Paul <[email protected]>
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I'm not sure what the true meaning of "The rounding mode may vary." is,
but it is the case that the IROUND() path rounds differently than the
other paths (and does it wrong, at that).
Like _mesa_roundeven{f,}(), just add an use _mesa_lroundeven{f,}() that
has known semantics.
Reviewed-by: Roland Scheidegger <[email protected]>
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Can't find any uses of it in git history.
Reviewed-by: Jordan Justen <[email protected]>
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This is _mesa_fls() for 64-bit values.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Eric's initial patch adding constant expression evaluation for
ir_unop_round_even used nearbyint. The open-coded _mesa_round_to_even
implementation came about without much explanation after a reviewer
asked whether nearbyint depended on the application not modifying the
rounding mode. Of course (as Eric commented) we rely on the application
not changing the rounding mode from its default (round-to-nearest) in
many other places, including the IROUND function used by
_mesa_round_to_even!
Worse, IROUND() is implemented using the trunc(x + 0.5) trick which
fails for x = nextafterf(0.5, 0.0).
Still worse, _mesa_round_to_even unexpectedly returns an int. I suspect
that could cause problems when rounding large integral values not
representable as an int in ir_constant_expression.cpp's
ir_unop_round_even evaluation. Its use of _mesa_round_to_even is clearly
broken for doubles (as noted during review).
The constant expression evaluation code for the packing built-in
functions also mistakenly assumed that _mesa_round_to_even returned a
float, as can be seen by the cast through a signed integer type to an
unsigned (since negative float -> unsigned conversions are undefined).
rint() and nearbyint() implement the round-half-to-even behavior we want
when the rounding mode is set to the default round-to-nearest. The only
difference between them is that nearbyint() raises the inexact
exception.
This patch implements _mesa_roundeven{f,}, a function similar to the
roundeven function added by a yet unimplemented technical specification
(ISO/IEC TS 18661-1:2014), with a small difference in behavior -- we
don't bother raising the inexact exception, which I don't think we care
about anyway.
At least recent Intel CPUs can quickly change a subset of the bits in
the x87 floating-point control register, but the exception mask bits are
not included. rint() does not need to change these bits, but nearbyint()
does (twice: save old, set new, and restore old) in order to raise the
inexact exception, which would incur some penalty.
Reviewed-by: Carl Worth <[email protected]>
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We were already using strdup() in various places in Mesa. Get rid
of the _mesa_strdup() wrapper. All the callers pass a non-NULL
argument so the NULL check isn't needed either.
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Move it to the only place it's used.
Reviewed-by: Ian Romanick <[email protected]>
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https://bugs.freedesktop.org/show_bug.cgi?id=89345
Signed-off-by: Brian Paul <[email protected]>
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Don't include stuff we don't need. Fix a few #includes elsewhere to
keep thing building.
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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The later is only used in one place in swrast.
Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Roland Scheidegger <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Use the wrapper in c99_math.h if needed.
Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Not used anywhere. If any of these are needed, they should be added
to c99_math.h
Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Matt Turner <[email protected]>
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Start getting rid of some imports.h macros. Use the c99 functions instead.
Reviewed-by: Matt Turner <[email protected]>
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Both core mesa and glsl have their own wrappers for strtof_l. Merge
and move them to util/. They are compiled with a C++ compiler so that
we can make them thread-safe in a following commit.
Signed-off-by: Chia-I Wu <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Presumbly this will let clang and other compilers use the built-ins as
well.
Notice two changes specifically:
- in _mesa_next_pow_two_64(), always use __builtin_clzll and add a
static assertion that this is safe.
- in macros.h, remove the clang-specific definition since it should
be able to detect __builtin_unreachable in configure.
Reviewed-by: Jason Ekstrand <[email protected]> [C bits]
Reviewed-by: Ian Romanick <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
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I think OpenVMS was the only platform that Mesa ran on that used a
non-IEEE representation for floats. We removed OpenVMS support a while
back, and this should alleviate the need to continue updating the
this-platform-uses-IEEE list.
The one bit of this patch that needs review is the IS_INF_OR_NAN,
because I'm not sure if MSVC supports isfinite.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82268
Reviewed-by: Brian Paul <[email protected]>
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Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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According to a quick micro-benchmark, this new version is 20% faster on my
Haswell laptop.
v2: Removed the XXX note about x86_64 from the comment
v3: Use an intrinsic instead of an __asm__ block. This should give us MSVC
support for free.
v4: Enable it for all x86_64 builds, not just with USE_X86_64_ASM
Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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A define is necessary, like for earlier VS versions.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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No longer used anywhere. These also caused trouble in the Gallium
state tracker code where we include both core Mesa and Gallium util
headers (and the macros were defined differently in each world.)
Removing these macros should help avoid macro mix-ups in the future.
Reviewed-by: Jakob Bornecrantz <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Signed-off-by: Brian Paul <[email protected]>
Cc: "10.0" "10.1" <[email protected]>
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This will let us use strcasecmp() from anywhere inside Mesa without
having to worry about the fact that it doesn't exist in MSVC.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Signed-off-by: Brian Paul <[email protected]>
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The previous commit introduced extra words, breaking the formatting.
This text transformation was done automatically via the following shell
command:
$ git grep 'THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY' | sed 's/:.*$//' | xargs -I {} sh -c 'vim -e -s {} < vimscript
where 'vimscript' is a file containing:
/THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY/;/\*\// !fmt -w 78 -p ' * '
:wq
Reviewed-by: Brian Paul <[email protected]>
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This brings the license text in line with the MIT License as published
on the Open Source Initiative website:
http://opensource.org/licenses/mit-license.php
Generated automatically be the following shell command:
$ git grep 'THE AUTHORS BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/THE AUTHORS/THE AUTHORS OR COPYRIGHT HOLDERS/' {}
This introduces some wrapping issues, to be fixed in the next commit.
Reviewed-by: Brian Paul <[email protected]>
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Generated automatically be the following shell command:
$ git grep 'BRIAN PAUL BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/BRIAN PAUL/THE AUTHORS/' {}
The intention here is to protect all authors, not just Brian Paul. I
believe that was already the sensible interpretation, but spelling it
out is probably better.
More practically, it also prevents people from accidentally copy &
pasting the license into a new file which says Brian is not liable when
he isn't even one of the authors.
Reviewed-by: Brian Paul <[email protected]>
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Use the __builtin_ffs, __builtin_ffsll functions whenever we have GCC,
not just for specific platforms. Fixes Solaris build.
Note: This is a candidate for the stable branches.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62868
Signed-off-by: Brian Paul <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
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Move round_to_even's definition to mesa/main so that _mesa_float_to_half()
can use it in order to eliminate rounding bias.
In additon to moving the fuction definition, prefix its name with "_mesa",
just as all other functions in mesa/main are prefixed.
v2: Fix Android build.
Reviewed-by: Ian Romanick <[email protected]>
Signed-off-by: Chad Versace <[email protected]>
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Not maintained since 2008. Doubtful that it's worked in quite a while.
Also see commit 32ac8cb05 which removed VMS stuff from Makefile in 2009.
Cc: Jouk Jansen <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Signed-off-by: Andreas Boll <[email protected]>
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The functions were broken, because they converted ints to floats.
Now we can finally advertise OpenGL 3.0. ;)
In this commit, the vbo module also tracks the type for each attrib
in addition to the size. It can be one of FLOAT, INT, UNSIGNED_INT.
The little ugliness is the vertex attribs are declared as floats even though
there may be integer values. The code just copies integer values into them
without any conversion.
This implementation passes the glVertexAttribI piglit test which I am going
to commit in piglit soon. The test covers vertex arrays, immediate mode and
display lists.
NOTE: This is a candidate for the stable branches.
Reviewed-by: Brian Paul <[email protected]>
v2: cosmetic changes as suggested by Brian
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