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Roland Scheidegger 24076eb3f9 llvmpipe: Fix overflow issues calculating loop iterations for aniso
iceil can return bogus (negative) values in case there's an overflow
(or a NaN). This would then take forever to run due to a couple billion
loop iterations.
Use unsigned minimum instead which will clamp iterations to max aniso
(not sure if that makes more sense than clamping negative values to 0,
probably doesn't really matter).

Fixes: 350a0fe632 ("llvmpipe: Use a simpler and faster AF implementation")

Reviewed-by: Brian Paul <brian.paul@broadcom.com>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33537>
2025-02-15 04:08:02 +00:00
.ci-farms ci: re-enable austriancoder's farm 2025-02-05 04:35:07 +00:00
.ci-farms-disabled ci: re-enable austriancoder's farm 2025-02-05 04:35:07 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab gitlab: Reference hang debugging documenttion 2024-05-16 09:47:53 +00:00
.gitlab-ci ci/anv: Enable testing with Vulkan video encode/decode. 2025-02-14 01:21:20 +00:00
.marge/hooks ci: pipeline_message: reset empty errors 2025-01-07 05:08:10 +00:00
android android: remove shared-glapi building rules 2025-01-27 17:20:17 +00:00
bin khronos-update: Update ANDROID guards in vk_android_native_buffer.h 2025-02-03 10:21:23 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs panvk: enable uniformBufferStandardLayout 2025-02-14 18:06:44 +00:00
include ac,radv,radeonsi: add new GFX12_DCC_WRITE_COMPRESS_DISABLE tiling flag 2025-02-03 21:12:07 +00:00
licenses licenses: add missing licenses 2025-01-08 20:37:51 +00:00
src llvmpipe: Fix overflow issues calculating loop iterations for aniso 2025-02-15 04:08:02 +00:00
subprojects meson: Update wayland-protocols to 1.38 2024-11-07 00:03:23 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include r300: opt in to clang-format CI enforcement for the compiler 2024-10-15 09:24:02 +00:00
.dir-locals.el
.editorconfig meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
.git-blame-ignore-revs ir3: add reformatting commits to .git-blame-ignore-revs 2024-12-02 16:44:50 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore .gitignore: add .cache folder 2024-05-13 14:32:12 +00:00
.gitlab-ci.yml ci: run containers builds on staging branches 2025-02-12 07:06:02 +00:00
.graphqlrc.yml ci/bin: Add utility to find jobs dependencies 2022-08-03 23:10:37 +00:00
.mailmap mailmap: update rohan's primary email address 2024-06-19 09:06:15 +00:00
.mr-label-maker.yml meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
.shellcheckrc ci: move shellcheck options to .shellcheckrc 2024-10-24 22:43:03 +00:00
CODEOWNERS meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
meson.build meson: add freedreno (turnip) Vulkan to arm64 defaults 2025-02-11 14:35:16 +00:00
meson.options meson: rename meson_options.txt 2025-02-09 08:13:27 +00:00
README.rst docs: Match README installation guide with meson.rst 2024-07-27 11:53:53 +00:00
rustfmt.toml mesa: Add rustfmt.toml 2024-11-18 22:29:14 +00:00
VERSION VERSION: bump to 25.1 2025-01-30 19:02:37 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

This repository lives at https://gitlab.freedesktop.org/mesa/mesa.
Other repositories are likely forks, and code found there is not supported.


Build & install
---------------

You can find more information in our documentation (`docs/install.rst
<https://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ meson setup build
  $ ninja -C build/
  $ sudo ninja -C build/ install

Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.net/dri-devel>`_, someone will redirect you if
necessary.
Remember that not everyone is in the same timezone as you, so it might
take a while before someone qualified sees your question.
To figure out who you're talking to, or which nick to ping for your
question, check out `Who's Who on IRC
<https://dri.freedesktop.org/wiki/WhosWho/>`_.

The next best option is to ask your question in an email to the
mailing lists: `mesa-dev\@lists.freedesktop.org
<https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_


Bug reports
-----------

If you think something isn't working properly, please file a bug report
(`docs/bugs.rst <https://docs.mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://docs.mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.